Video encoding Archives - Epiphan Video https://www.epiphan.com/blog/topic/video-encoding/ capture, stream, record Tue, 16 Jul 2024 07:27:05 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.5 How to get the most out of an NDI encoder https://www.epiphan.com/blog/how-to-get-the-most-out-of-an-ndi-encoder/ https://www.epiphan.com/blog/how-to-get-the-most-out-of-an-ndi-encoder/#respond Thu, 23 Feb 2023 13:25:31 +0000 https://www.epiphan.com/?p=167479 To ensure that all your NDI devices work together seamlessly, here are some things you need to know to get the most out of an NDI encoder.

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Once video producers started transporting their signals across local networks with Network Device Interface (NDI), they found a more elegant, scalable way to work. Eight years since its release, NDI has been adopted by heavyweight manufacturers like Canon, Sony, Panasonic, further empowering more flexibility in creators.

An NDI encoder lets you capture video and audio signals from NDI-native cameras, mixers, displays, and more. To ensure that all your NDI devices work together seamlessly, here are some things you need to know to get the most out of an NDI encoder.

Jump to

    Network bandwidth

    The first step when using NDI is to assess the available bandwidth on your local network. Regardless of the NDI encoder’s make, model, or features, the encoding can only be performed to its full potential if the local network can transport the signals.

    At a minimum, the workflow should be running on a Gigabit network – throughput speeds, full duplex ports, and upstream and downstream data speeds must all be capable of transferring the data. Insufficient bandwidth can negatively affect the final product – dropped frames, frozen video, audio glitches, and sudden disconnection.

    The general rule of thumb is to reserve 25 percent of bandwidth for headroom so that the signal transmission remains smooth should there be any unaccounted for traffic while your production is underway. So, if a Gigabit network isn’t doing the trick, consider upgrading to a 10 Gigabit network.

    A typical High Bandwidth NDI stream at 1920×1080p@30 fps needs approximately 100 Mbps per stream. But the bandwidth required to use NDI effectively will vary depending on the number of video sources, the resolutions, and the frame rates. Ultimately, the bandwidth required is unique to the video production at hand, making it wise to test the network if possible.

    In 2016, one year after High Bandwidth NDI was released, a high-efficiency version of the IP-based solution called NDI|HX was released. It was specifically designed to work on low-bandwidth networks.

    One 1920×1080p@30 fps NDI|HX stream needs approximately 24 Mbps, making it highly versatile. However, the efficient compression used by NDI|HX does add some latency to the stream. The added latency varies depending on the device, frame rate, and resolution, but it’s typically not more than one or two frames of delay – hardly noticeable to the eye or ear.

    NDI and NDI|HX bandwidth recommendations

    Resolution / FramerateHigh Bandwidth NDI MbpsNDI|HX Mbps
    1920×1080p@301008
    1920×1080p@6015010.5
    3840×2160@3020018
    3840×2160@6025030

    Hardware over software

    When choosing any encoder – and NDI encoders are no different – we always face the same question: hardware or software?

    Software encoders have their benefits in certain situations, but the performance and reliability hardware encoders offer compared to software alternatives are essential for an NDI production. Software encoding can be resource-intensive, requiring very powerful computers with state-of-the-art GPUs and plenty of memory to run effectively in an NDI workflow.

    Unless one or several computers already meet the requirements of processing NDI’s high-quality, low-latency video, encoding software can crash mid-record or stream. At best, the software encoder will add latency to the NDI feeds, undermining one of the biggest benefits of the solution. Determining a system’s requirements to run an NDI software encoder effectively may be challenging as it can vary depending on the content being produced.

    A hardware NDI encoder is an investment in performance and reliability. Optimized from the ground up to encode video, acquiring high-quality and audio inputs with no added latency and no other competing programs makes hardware a wise choice.

    Multi-encoding support

    Multi-encoding is the process of encoding one or more inputs multiple times with different settings. As a result, you have a wealth of redundancy by capturing all your assets simultaneously at different resolutions, bitrates, and frame rates. For example, you can send a 720p@30 fps live stream to a media server while saving a 1080p@30 fps recording to the device’s internal storage.

    Depending on the encoder, multi-encoding support can offer far greater depth than just encoding at different settings. Hardware encoders that feature multiple programs or channels can encode assets independently of the content being shared. For example, if your hardware encoder allows for content to be mixed and switched within the device, you could have several layouts streaming a 720p@30 fps to a media server in one channel, a 1080@30 fps recording saved to internal storage, and ISOs of each video asset recorded in separate channels as additional backups.

    This is particularly useful any time you are streaming live events where there are no second chances. Should the stream stutter or fail, you have the recorded backup with its layouts, but you can also work off individual camera feeds to create a produced broadcast.

    Multi-encoding: What it is and when it's useful

    Multi-encoding is all about simultaneously encoding multiple video assets for streaming and recording. Read this article to dive deeper into what multi-encoding is and when to use it.

    Learn more

    Input versatility

    While NDI has many advantages, keeping your options open and having plan B’s readily available is always a good idea in video production. When searching for an NDI encoder, a device that can accept networked signals and physical cables ensures you can create the best possible video in any circumstance.

    When an encoder can accept HDMI, SDI, and NDI or NDI|HX equally, you can stream and record your content regardless of the network’s condition. Plus, you eliminate the need to add converters for any incompatible hardware. But the most significant benefit is that physically connecting certain devices can help keep the network clear to acquire the essential NDI signals with greater reliability. On the other hand, putting every device on the same network could cause network congestion.

    Be prepared for any situation with an NDI encoder that works with everything.

    NDI encoder

    Remote device management

    An NDI encoder sits at the heart of your workflow. As such, if it’s interrupted in any way, it can grind your video production to a halt.

    Whether dealing with a single or several NDI encoders, it’s essential to have the chance to access it from anywhere and mitigate any downtime. Remote device management is an extraordinary asset for any NDI encoder.

    By accessing it in the cloud or receiving customized alerts from 24/7 monitoring, you can take corrective action immediately and begin troubleshooting from anywhere.

    When a device malfunctions, it’s stressful for all stakeholders. Giving yourself the convenience and flexibility to manage the device remotely in these high-pressure situations is insurance against production interruptions.

    Be there when you can’t with Epiphan Edge

    Epiphan Edge gives you a window into your Pearl-powered productions wherever you are with full remote control, 24/7 device monitoring, and more.

    Discover Epiphan Edge

    Interoperability

    On top of delivering high-quality video with greater convenience, NDI’s rise to prominence can also be attributed to its interoperability. As an open standard protocol, it’s publicly available to anyone, allowing any hardware manufacturer to implement it.

    When choosing an NDI encoder, selecting a device that shares NDI’s commitment to compatibility will make it a seamless fit in almost any situation.

    Integrations with content management systems like Kaltura or automation controls like Creston or Q-SYS can make your productions vastly more efficient and easier to use. Devices with an open API allow owners to customize the hardware to suit their exact needs, further optimizing the exact workflow.

    Investing in an NDI encoder that can’t complement the systems already in place, either with built-in integrations or through the open API, can lead to frustration, downtime, and even the complete overhaul of video tech stacks.

    To take full advantage of the quality NDI offers, a device that works with virtually everything, like NDI itself, is a huge boon for integrators.

    The best NDI encoders: Epiphan Pearl-2 and Pearl Mini

    The award-winning Epiphan Pearl production systems, known for their reliability and versatility, can be featured at the center of your NDI workflows.

    Pearl Mini accepts two NDI|HX inputs, allowing you to connect high-quality, low-latency video more efficiently over your local networks.

    Pearl-2 allows users to receive up to six NDI|HX, up to three High Bandwidth NDI inputs, and output 1080p@30 fps High Bandwidth NDI or one 4K@30 fps High Bandwidth NDI stream.

    Discover what Pearl can do for your NDI workflows.

    Capture broadcast-quality, low-latency video with more freedom thanks to NDI and Pearl

    Pearl-2 and Pearl Mini support NDI, providing users with more options to acquire high-quality video signals from networked cameras.

    Unlock your NDI workflows

    The post How to get the most out of an NDI encoder appeared first on Epiphan Video.

    ]]>     https://www.epiphan.com/blog/how-to-get-the-most-out-of-an-ndi-encoder/feed/ 0     Choosing a Wowza hardware encoder https://www.epiphan.com/blog/choosing-a-wowza-hardware-encoder/ https://www.epiphan.com/blog/choosing-a-wowza-hardware-encoder/#respond Fri, 17 Feb 2023 17:56:32 +0000 https://www.epiphan.com/?p=167250 A Wowza hardware encoder is essential to engage audiences with exceptional video.

    The post Choosing a Wowza hardware encoder appeared first on Epiphan Video.

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    Wowza Video is a leading live and on-demand streaming platform, providing a reliable, scalable, customizable, and secure solution for any organization that shares video content. And while enterprises, media, and educators all count on Wowza Video to deliver a high-quality viewing experience to their audience, a Wowza hardware encoder is essential to ensuring the content gets delivered to the platform reliably.

    In the past, choosing a Wowza hardware encoder may have been as simple as selecting the Wowza ClearCaster. Made by Wowza, the ClearCaster came equipped with presets fully integrated with the platform and delivered content with the proprietary WOWZ™ protocol.

    However, in January 2023, a message went out to all ClearCaster customers notifying them of the intent to retire the product. As a result, technical support for the Wowza ClearCaster will no longer be available after December 31st, 2023.

    With the Wowza ClearCaster discontinued, selecting a Wowza hardware encoder is more complicated. Consumers are spoiled for choice when selecting a hardware encoder to enhance their Wowza Video efforts. If you need a solution to replace the Wowza ClearCaster, these are the features we recommend in a Wowza hardware encoder.

    Contents

      Why hardware encoders are essential

      There are two types of encoders: hardware and software.

      Hardware encoders offer superior performance and reliability, two key factors that ensure consistent results in streaming and recording professional video. Hardware encoders are specifically designed and optimized to handle multiple high-end audio and video sources without dropping frames or interrupting the stream.

      Meanwhile, software encoders run off general-purpose GPUs and CPUs to perform the same function. You need to own one or several computers powerful enough to encode video, or software encoders may be interrupted by background operations. Furthermore, assessing a computer’s requirements can be a long process depending on what kind and how much content is produced.

      Rather than constantly evaluating how to optimize one or many computers to work as encoders, hardware encoders have already gone through rigorous tests to ensure the Wowza stream runs smoothly.

      Flexible inputs

      Audio and video inputs available are the first thing to check in a Wowza hardware encoder. By leveraging a wide range of input options, a hardware encoder can accommodate a variety of equipment you already own – cameras, mixers, and more.

      A device that supports HDMI, SDI, and USB all at once means you’ll be able to connect any camera available in any given situation without worrying about easily misplaced adapters. The same is true for audio inputs. A device that supports XLR or RCA stereo means that Wowza can acquire the professional audio gear you need to tell your story.

      When you have options to connect your equipment, you can confidently capture the content with whatever’s available. But flexible inputs aren’t limited to physical connections. The rise of hybrid and remote video production means it’s crucial to accommodate remote contributors who may not have access to anything besides video conferencing apps.

      A hardware solution that can add remote guests to a production with AV over IP solutions like Network Device Interface (NDI) and Secure Reliable Transport (SRT) opens up a world of possibilities. With the ability to add guests from conferencing tools like Microsoft Teams or Zoom, any space can become a studio, empowering you to create with more flexibility while delivering an exceptional experience to Wowza Video.

      Production needs will grow and change over time. There will be new cameras, sound equipment, and ways to bring in remote guests, Prioritizing a flexible hardware encoder for Wowza Video, which already works with everything and continues to adapt to wherever the industry goes next, allows your workflows to adapt to the unique needs of each production.

       

      wowza hardware encoder

      Streaming protocols

      Once a hardware encoder captures the audio and video, it must be transported to the Wowza Video platform. And just like the acquisition of your audio and video, the flexibility with which you can get this content onto Wowza is a massive asset to your content plans.

      At the bare minimum, a hardware encoder needs to be able to stream your content to Wowza via the RTMP protocol in H.264, which is easy to find. But Wowza Video supports a wide range of streaming protocols including RTMPS, RTSP, MPEG-DASH, HLS, and SRT.

      The best streaming protocol for first-mile delivery to Wowza Video depends on the production. For example, HLS supports up to 4K video and can be delivered across unpredictable networks thanks to its ability to adapt, but it achieves this by adding latency to the stream. Meanwhile, SRT was built to provide low-latency, high-quality video over unreliable Internet connection, making it an ideal choice for any live content that requires real-time communication between talent and audience.

      A Wowza hardware encoder that supports multiple different protocols for first-mile delivery so that you can send the possible content for any network conditions, codecs, and type of content.

      Why SRT, HLS, and MPEG-DASH are the future of streaming

      What is SRT, HLS, and MPEG-DASH and why are they important for the future of live streaming? Explore each streaming protocol's benefits, application, and how it works.

      Learn more

      Cloud and remote management

      Whether you plan on streaming from multiple locations or a single studio, accessing one of several Wowza hardware encoders from a single, centralized dashboard makes life easier for all stakeholders.

      A hardware encoder configured, monitored, maintained, and operated from anywhere reduces downtime by eliminating legwork or travel time to diagnose the issue interrupting the stream or record.

      Ideally, a remote-manageable device includes 24/7 device monitoring and customized alerts, allowing any team member to identify and resolve issues. In addition, remote management should also allow content control, quick configuration, starting and stopping, and the verification that everything is working as intended for the highest quality audience experience.

      Remote device access and management offer invaluable peace of mind that the hardware is doing its job to deliver exceptional content to your audience.

      Before the hardware was retired, a significant benefit of the Wowza ClearCaster was Cloud Orchestration. This allowed owners to take complete control of an entire fleet from anywhere in the world. Thankfully, many manufacturers have followed suit and it’s possible to find devices that can be accessed, monitored, and controlled in the cloud.

      Adding production value

      By taking advantage of a hardware encoder’s reliability and performance, you positively contribute to your content’s overall production value. By sending it to Wowza via SRT, you are ensuring quality and stability, which adds production value. Managing one or several devices remotely provides consistent performance, adding production value. And while important, these are all elements of production value audiences typically take for granted.

      There are hardware encoders that add more visible production value, like branding and customized layouts, which can make your Wowza videos stand out and become more memorable.

      Most hardware encoders convert the raw signals into streamable codecs. However, there are all-in-one production systems that can encode and create custom layouts, add images and dynamic text, and even switch between these different design elements that can help make your Wowza live stream undeniably yours.

      Stream to Wowza with Epiphan Pearl

      Following the announcement that the Wowza ClearCaster would be discontinued at the end of 2023, Wowza recommended Epiphan Pearl systems as one of the best hardware encoders for live streaming.

      Pearl systems provide all the essential tools to create top-quality content for Wowza Video. With purpose-built components and a wide range of physical and AV over IP inputs, you can acquire signals from virtually any device and trust it to perform.

      Pearl offers multiple streaming protocols such as SRT, HLS, RTMPS, and more, ensuring your content reaches Wowza in the best quality. Their lightweight and portable design makes them suitable for any environment. Furthermore, Epiphan Cloud enables you to manage one or several devices 24/7 from anywhere.

      Discover which Pearl is right for your Wowza Video projects.

      Stream like a pro

      High-performance hardware for video capture, streaming, and recording. With seamless CMS support for Kaltura, Panopto, Opencast, and YuJa and easily integrates with Crestron AV systems.

      Compare Pearl systems

      The post Choosing a Wowza hardware encoder appeared first on Epiphan Video.

      ]]>       https://www.epiphan.com/blog/choosing-a-wowza-hardware-encoder/feed/ 0       Live streaming hardware encoder primer https://www.epiphan.com/blog/hardware-encoder-primer/ https://www.epiphan.com/blog/hardware-encoder-primer/#comments Mon, 01 Nov 2021 08:59:00 +0000 https://www.epiphan.com/blog/blog-template-copy/ Understand the basics about hardware encoders in 10 minutes. This article demystifies codecs, bitrates, and streaming protocols.

      The post Live streaming hardware encoder primer appeared first on Epiphan Video.

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      Comparing live streaming solutions? Researching the difference between using hardware and software for streaming? Looking to understand the fundamentals of encoding settings for streaming? Read on! We’ll be going over all of that and more in this hardware encoder primer.

      Jump to

        What is a hardware encoder?

        When it comes to streaming video across the web, uncompressed video and audio files are too large and bulky to send in real time. The solution is to compress these files first.

        A hardware encoder is a dedicated appliance that captures, compresses (encodes), and delivers audio and video data to a destination. Specifically, a live streaming hardware encoder is a device that can stream video over local area networks (LAN), wide area networks (WAN), or across the Internet.

        Online streaming destinations include streaming platforms like YouTube Live, LinkedIn Live, and Facebook Live as well as live streaming services like Vimeo, Akamai, and Wowza.

        Examples of live streaming encoders include Epiphan’s Pearl Nano, Pearl Mini, and Pearl-2. In addition, many hardware encoders feature other capabilities, like live video switching and local video recording.

        Hardware encoder diagram

        Audio and video inputs on hardware encoders

        Hardware encoders typically have a variety of inputs that let you directly connect higher-end video and audio equipment like cameras and microphones. For example, Pearl-2 can capture local video over HDMI, USB, and SDI inputs, analog audio inputs over XLR and RCA, and networked AV inputs over NDI, SRT, and RTSP.

        By contrast, to connect the same equipment to a general-purpose computer system, you’d need a capture card to stream video from a camera or a front-end audio interface for professional audio.

        Streaming solutions you can trust

        Live stream with confidence and ease using the reliable and intuitive Pearl hardware solutions

        Discover Pearl hardware encoders

        Hardware encoders vs. live streaming software

        Live streaming software is an application running on general-purpose, off-the-shelf computers (such as a laptop or a desktop machine). A few examples of streaming software include vMix, Wirecast, and OBS. Much like a hardware encoder, live streaming software compresses and streams video to a destination.

        The main difference is that hardware encoders dedicate all processing power to capturing, encoding, and streaming. In contrast, computer-run streaming software has to share resources with other processes on the machine. Hardware encoders are designed from the ground up specifically for encoding and streaming, which makes them a more reliable streaming solution compared to their software counterparts. This is why professional broadcasters rely on hardware encoders in mission-critical situations.

        Encoding settings: Key terms to understand

        Encoding settings have a direct impact on stream quality. Generally speaking, the higher the settings (within specific value ranges),the higher the video quality.

        Streaming platforms often offer a list of recommended encoding settings for live streaming. It’s a good idea to use them as a guide. Here is an overview of the key encoding parameters users have control over.

        Codecs

        A codec is the compression method for making media files smaller. Different codecs provide different types of compression to fit specific use cases. Not all video codecs are fit for live streaming.

        A few examples of widely used video codecs for streaming are Motion-JPEG (MJPEG), H.264/AVC, and H.265/HEVC. H.264/AVC is arguably the most commonly used codec today. H.265/HEVC is the next generation of codecs after H.264/AVC. It promises identical quality to H.264 at about half the bitrate, decreasing upload bandwidth requirements.

        Note that audio gets encoded separately from the video. The most commonly used audio codec is called AAC.

        Encoding resolution

        Encoding resolution is the video frame size, expressed in pixels as width x height. Two common resolutions are 1280 x 720 (i.e., 720p) and 1920 x 1080 (i.e., 1080p). Higher streaming resolutions such as 4K are less popular because they require significant processing power, upload bandwidth, and 4K resolution support on the viewer’s side.

        Because everyone’s setup is a little different, it’s good practice to give viewers a choice of resolutions when viewing your content. If the CDN you’re using includes transcoding (many do), there’s no extra work to be done on your end. Simply send the highest quality stream and the CDN will present the viewer with a range of resolutions.

        Frame rate

        Frame rate is the number of images encoded per second, in frames per second (fps). Standard frame rates include 24, 25, 30, and 60 fps, with 30 fps being the most widely used setting for online streaming.

        Bitrate

        Bitrate describes how much data is transmitted per unit of time. Bitrate is commonly measured in kilobits per second (Kbps) and less frequently in megabits per second (Mbps). The higher the bitrate, the higher the video quality – but also the larger the file size.

        Finding the right bitrate setting is about balance. A low bitrate setting will cause the live stream to look jittery and low quality. On the other hand, setting the bitrate too high may cause video buffering for viewers because the file size becomes too large.

        The bitrate setting will depend on the chosen codec, resolution, and frame rate. For example, the video bitrate range for a 1080p at 30 fps stream is between 3,000–6,000 Kbps, whereas the bitrate range for 4K 60 fps streaming is between 20,000–51,000 Kbps.

        In addition to adequately chosen bitrate, another crucial factor for high-quality online video delivery is sufficient local upload bandwidth. No matter how high the bitrate or how powerful the hardware encoder, low bandwidth can become the bottleneck for streaming quality.

        Pearl WebUI Encoding Settings

        Above is a screenshot of the encoding settings tab in Pearl Web UI

        Streaming protocols: What they are and how they work

        A streaming protocol is a method by which multimedia is delivered to the streaming destination. It’s a set of rules that decides how to cut up the encoded video into smaller chunks and deliver it to the destination, on time and in the correct order. Different hardware encoders support specific sets of streaming protocols. In addition, some streaming protocols will only work with particular codecs, whereas other protocols are codec-agostic.

        Different video streaming protocols can deliver video online with varying degrees of delay. For example, some protocols can instantly transfer data from the hardware encoder to the destination, whereas others take more time. This is known as streaming latency.

        For one-way transmissions, some latency is no big deal. For events with interactivity, however, high streaming latency is unacceptable. Thus, latency requirement is one of the factors that inform the choice of streaming protocol.

        One of the most commonly used streaming protocols is the Real-Time Messaging Protocol (RTMP) and its secure variant (RTMPS). RTMP(S) is a robust and universally supported protocol. However, it only works with the H.264 codec and has some latency (3–30 seconds).

        HTTP Live Streaming (HLS) is another common protocol supported by nearly every browser, operating system, and even Smart TVs. HLS only works with H.264 and H.265 codecs.

        A direct HLS competitor is MPEG-DASH. Unlike HLS, MPEG-DASH is a codec-agnostic protocol. When it comes to streaming latency, both HLS and MPEG-DASH are on the higher end of the scale (30–45 seconds).

        Secure Reliable Transport (SRT) is an open-source, codec-agnostic streaming protocol. It enables robust, low-latency streaming even over suboptimal networks. Its ability to deliver high-quality content in near real-time over the Internet gives broadcasters a viable alternative to expensive satellite technology. SRT is not as widely supported as RTMP, for example, but it is gaining popularity and support in the realm of hardware encoding.

        Advice on choosing a hardware encoder

        Hardware encoder models are priced based on the number and type of input connectors, supported streaming and encoding technologies, and, most importantly, processing power. Every additional input source and encoding channel adds extra load on the encoder’s CPU. Higher-end hardware encoders, like Pearl-2, can capture multiple audio and video sources, encode multiple channels at a high resolution, and stream to multiple destinations simultaneously. More basic models may only capture one or two sources and stream one program to one destination.

        We recommend choosing a hardware encoder based on your encoding and streaming requirements. For example, if you are looking to capture just one input from a production mixer and stream it to a single online destination – consider a single-channel encoder like Pearl Nano. On the other hand, if you are looking to capture multiple HDMI, SDI, and perhaps NDI sources and stream multiple encoded channels to multiple destinations – consider a workhorse hardware encoder like Pearl-2.

        Originally published on June 2, 2019, this post was updated on Nov 1, 2021, with more relevant information.

        The post Live streaming hardware encoder primer appeared first on Epiphan Video.

        ]]>         https://www.epiphan.com/blog/hardware-encoder-primer/feed/ 5         The best SRT encoder for remote contribution and guests https://www.epiphan.com/blog/best-srt-encoder/ https://www.epiphan.com/blog/best-srt-encoder/#respond Wed, 29 Sep 2021 13:53:52 +0000 https://www.epiphan.com/?p=156159 If you’re looking for an SRT encoder that’s easy to use, compact, and cost-effective, Pearl Nano is the perfect solution.

        The post The best SRT encoder for remote contribution and guests appeared first on Epiphan Video.

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        Searching for the perfect Secure Reliable Transport (SRT) encoder for your hybrid or remote productions? With so many hardware and software solutions out there, it’s hard to know where to start. In this post, we’ll discuss all the reasons why Pearl Nano is the best SRT encoder for remote contribution.

        Contents

          A perfect fit for SRT encoding and more

          With its portable yet powerful feature set, Pearl Nano is the perfect SRT hardware encoder. Whether it’s for remote contribution, small-scale live event production, or as a streamer/recorder add-on to a full production switcher, Pearl Nano can meet your SRT needs.

          Discover Pearl Nano

          Hardware encoding vs. software encoding for SRT

          Pearl Nano is a hardware encoder, but there are software-based SRT encoders you could use for remote contribution as well. So why should you use a hardware encoder like Pearl Nano in this case rather than a software encoder?

          Here’s why hardware is the better option for SRT encoding.

          More reliable

          Hardware encoders are built from the ground up for video production. They don’t need as many cables and components to record and stream from high-end cameras and audio equipment, making for fewer points of failure.

          Compare this to software encoders, which run on general-purpose computer hardware. This makes them more prone to interruptions by unrelated software like antivirus programs or OS updates. You definitely don’t want a pop-up or automatic shutdown bringing your live stream to a halt.

          More flexible

          With their built-in inputs, SRT hardware encoders give you plenty of options out of the box for capturing audio and video. Software encoders, on the other hand, can’t work with non-USB video signals without a USB capture card or audio interface.

          Easier to use

          Since they’re tailor-made for video production, hardware solutions often include features that simplify live streaming considerably. For example, our Pearl systems include one-touch controls and built-in confidence monitoring for a more user-friendly experience.

          Ease of use is especially important for remote production since not every guest who joins your live stream will have a technical background. An intuitive solution ensures it’s easy for them to set up and start contributing.

          Pearl and Connect CTA

          SRT contribution made easy

          Did you know you can capture broadcast-quality SRT feeds directly from Microsoft Teams meetings and into Pearl production hardware? Epiphan Connect is the missing link between the convenience of MS Teams and the power of Pearl.

          Discover Epiphan Connect

          The best SRT encoder: Meet Pearl Nano

          Pearl Nano is a single-channel encoder that can encode and decode SRT. Whether it’s for your own contributions or for your live stream guests, here are five reasons why Pearl Nano is the best choice for SRT encoding.

          1. Compact and cost-effective to ship

          Hardware encoders can be expensive to ship because of their size and cost. That’s a problem especially if you’re sending encoders to multiple contributors around the world.

          Small and lightweight, Pearl Nano offers just the right mix of features for remote SRT contribution. The rugged, all-metal enclosure protects your investment during operation and transport. And support for Power over Ethernet Plus (PoE+) means you don’t need to worry about packing a power adapter, making the system even more convenient for shipping.

          2. Simple to set up

          Configuration errors can wreak havoc on a live video production. That’s why you don’t want to put the burden on your contributors to set things up.

          It’s possible to pre-configure Pearl Nano for SRT contribution before sending it to your remote participants. That way all they have to do is connect their gear and power on to get started. Pearl Nano’s variety of inputs and outputs offer plenty of options for connecting audio and video equipment.

          PoE+ can streamline the setup process even further. All that’s needed is an Ethernet cable and a router that supports PoE+.

          3. Easy to use

          The encoder is set up. The live stream is starting. Now what? Complicated interfaces can derail a live video production. Ease of use is essential for a smooth contribution and production experience.

          Pearl Nano’s intuitive interface makes it so anyone can stream and record. For easy confidence monitoring, the built-in HDMI pass-through can output video sources on external monitors with zero latency. Alternatively, the built-in screen also offers convenient, at-a-glance monitoring of connected video and audio sources.

          4. Accessible from anywhere

          Not only can you pre-configure Pearl Nano, but you can also access and control the system entirely remotely with Epiphan Cloud. This way you can take care of any testing or live production tasks while your contributors focus on the content.

          5. Reliable

          Before a high-stakes broadcast, you want to be able to focus on making your event great rather than troubleshooting production issues. Peace of mind about your production equipment is everything.

          With dependable customer support and rigorous product testing, the Pearl Nano is a dedicated hardware device that won’t let you down.

          Pearl Nano 4K add-on

          Power your remote contributions with Pearl Nano

          Remote video production is more popular than ever. With the shift to remote work and online learning, this popularity will only rise. Position yourself for success with Pearl Nano, the best SRT encoder for remote contribution and more.

          To learn more about Pearl Nano, check out our product page.

          Epiphan Unify: Build a better hybrid workflow

          Pair Pearl Nano with the perfect production platform

          Epiphan Unify is a cloud-powered platform that can receive SRT signals from Pearl Nano or any other SRT-capable encoder or camera. Experience efficient, limitless production with the abilities to record, restream, mix, and switch from anywhere.

          Discover Epiphan Unify

          The post The best SRT encoder for remote contribution and guests appeared first on Epiphan Video.

          ]]>           https://www.epiphan.com/blog/best-srt-encoder/feed/ 0           Pearl Nano review videos are in https://www.epiphan.com/blog/pearl-nano-reviews/ https://www.epiphan.com/blog/pearl-nano-reviews/#respond Wed, 14 Apr 2021 05:43:25 +0000 https://www.epiphan.com/?p=152552 A collection of unbiased video reviews from Epiphan Pearl Nano users. Industry and technology experts share their experience using Epiphan Pearl Nano, the perfect-fit streamer and recorder.

          The post Pearl Nano review videos are in appeared first on Epiphan Video.

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          We’ve introduced Epiphan Pearl Nano as the newest and most compact member of the Pearl family of encoders. We’ve put a lot of hard work and rigorous testing into ensuring Pearl Nano adheres to our core values of reliability, versatility, and ease of use. We are truly proud of the end result, but we might be just a little biased.

          What’s it like to use Pearl Nano? What do users think about the features? How does it perform under pressure? Is it everything it claims to be? We gathered some video reviews from industry and tech experts for their unbiased opinions about Pearl Nano.

          Disclaimer: None of these content creators were paid for providing their opinions about Pearl Nano.

          Level1Techs – Insight from seasoned techies

          On their channel, Level1Techs share their knowledge about technology, science, and design. With over nine years on YouTube and over 320K subscribers, the channel has a reputation for delivering trustworthy reviews with passion and a bit of dry wit.

          They tend to go beyond simply listing the tech specs, offering rich insight based on years of experience. In this Pearl Nano review, Wendel shares his thoughts on using Epiphan Cloud for easy device management and configuration, API integrations, and Nano’s rugged physical design. He notes the device as a fool-proof solution for secure reliable transport (SRT) remote contribution:

          "I could program [Pearl Nano] and mail it and a decent audio solution to different people that I want to interview, have them set it up, and do interviews. Can you do the same thing with OBS and a crappy laptop? Yes, you absolutely can, but it’s going to age you prematurely because supporting that is going to take a lot of your time. The technological debt of building a solution like that is not going to be pretty.”
          Epiphan video thumb

          Curtis Judd – Best indexed video

          Curtis Judd is a filmmaker, photographer, and live streaming enthusiast. Curtis runs his own YouTube channel, “Learn Light and Sound,” where he gives useful tips on choosing audio gear, lighting, as well as live streaming setups. We were lucky enough to host Curtis on Live @ Epiphan. He gave some great insights into live video production – definitely worth checking out as well.

          In his review, Curtis takes an in-depth look at Pearl Nano as a single-channel video encoder for corporate and education environments. He dissects every feature and use case in amazing detail, resulting in the most detailed video index we’ve ever seen!

          Epiphan video thumb

          Aaron Parecki – Short, sweet, and straight to the point

          Aaron’s channel is all about helping his viewers improve their live video production skills. In just seven minutes, Aaron covers everything from Nano’s broad streaming protocol support to its streaming and recording functions. In Aaron’s opinion, Pearl Nano is the perfect video encoder for worship and education-type settings because it’s easy to use:

          “I can tell you for sure I would not set up an ATEM Mini in a classroom and expect people to know how to use it without a bunch of training. The Pearl Nano on the other hand is set up for one-button or automatic recording, streaming, and even uploading of content in classrooms and meeting rooms.”
          Epiphan video thumb

          Geeky Nerdy Techy – A geeky, nerdy, techy review

          On his channel, Shane covers many different technology-related topics, including live streaming. In just 14 minutes, he manages to go over most features of the Pearl Nano video encoder (including detailed video chapters for quick navigation). Shane points out that while Pearl Nano is not a solution for live switching, it is a great video encoding solution for those interested in using SRT or need CMS integration for streaming and recording.

          “The Pearl Nano replaces a computer when it comes to encoding, so you don’t need to have everything going through the computer, then out to the web, or then being recorded externally in another way. This will handle all that for you”

          Shane is excited to continue using the device as well as the upcoming 4K streaming support feature.

          Epiphan video thumb

          John Moore – Expert opinion from a Microsoft MVP

          Cerner Lead Technology Architect and Microsoft MVP John Moore knows a lot about using Pearl Mini in a remote work environment. We chatted about it with him on Live @ Epiphan.

          Now, John shares his first impressions using Pearl Nano. He gives an overview of the capabilities of the device, his personal setup, and a few ideas on how the device can fit into a live event production workflow.

          Epiphan video thumb

          VideoGuys – The unboxing video

          Fans of unboxing videos rejoice. VideoGuys video production specialist Adam Noyes methodically goes through every item in the box, unveiling the included quick-start guide, cables, outlet adapters, and, of course, Pearl Nano itself. For exact device measurements, Adam brings out a measuring tape and demonstrates: it is really as compact as we say.

          “This system is the perfect set-it-and-forget-it unit built for one channel live streaming! The Pearl Nano is amazing for – but not limited to – your house of worship, or school environment for mixed or online classes.”
          Epiphan video thumb

          Holdan – Best visuals

          Here is a review from Holdan, a pan-European technology distributor for the professional video, broadcast, and media industry. Holdan has built a reputation for a friendly and honest approach, and this video is a prime example.

          The Holdan team prides itself on knowing the products they represent and understanding the customers that use the equipment. Holdan product demo videos are detailed and visual, yet approachable and easy to understand. Watch Kriss dive deep into Pearl Web UI and Epiphan Cloud UI features, and set up and show you how to configure an SRT stream in under a minute. Here is likely one of our favorite Epiphan Pearl Nano reviews from a visual standpoint:

          Epiphan video thumb

          HuddleCam and Pearl Nano – A powerful tech combo for education

          This short, four-minute video presents Pearl Nano as the perfect companion to the HuddleCam SimplTrack2 Camera for use at schools and universities for automated, hands-off lecture capture, streaming, and recording.

          In a bonus video, Paul Richards (HuddleCam, PTZ Optics, StreamGeeks) chats with Epiphan’s George Herbert, expanding on the possibilities of using Pearl Nano with SimplTrack2 Camera.

          Epiphan video thumb
          Pearl Nano: The perfect-fit streamer and recorder

          Bring Pearl Nano to your productions

          Pearl Nano offers the ultimate blend of portability and versatility with a refined yet robust feature set that includes ingestion, encoding, HDMI pass-through, and recording.

          Get product details

          There we go! We hope you found these Epiphan Pearl Nano reviews helpful, informative, and resourceful. Don’t hesitate to reach out to us if you have any questions about Pearl Nano’s broad streaming protocol support, streaming and recording functions, or anything else.

          The post Pearl Nano review videos are in appeared first on Epiphan Video.

          ]]>           https://www.epiphan.com/blog/pearl-nano-reviews/feed/ 0           Epiphan Cloud: Key features for easy multi-device management https://www.epiphan.com/blog/epiphan-cloud-key-features-for-easy-multi-device-management/ https://www.epiphan.com/blog/epiphan-cloud-key-features-for-easy-multi-device-management/#respond Wed, 09 Dec 2020 10:35:00 +0000 https://www.epiphan.com/?p=150114 The post Epiphan Cloud: Key features for easy multi-device management appeared first on Epiphan Video.

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          Managing a single device is simple. But many devices, spread throughout a facility or across multiple locations? That’s a challenge – and one we’re addressing with the release of Epiphan Cloud.

          Epiphan Cloud

          One platform for all your Epiphan devices

          Epiphan Cloud makes it easy to monitor and manage all your Epiphan devices, whether you use Pearl hardware encoders for streaming and recording or LiveScrypt for automatic real-time transcription.

          Discover Epiphan Cloud

          What is Epiphan Cloud?

          Think of Epiphan Cloud as your command center for everything Epiphan. It’s where you can go to get a birds-eye view of Epiphan hardware you own – Pearl-2, Pearl Mini, Pearl Nano, and LiveScrypt – with access to essential device statistics and a host of remote control and configuration features that’ll save you tons of time.

          This is something customers who operate multiple Epiphan devices have been asking for, and it’s here. What can you expect from Epiphan Cloud? Let’s go over some of the biggest features.

          1. Assess your devices at a glance

          Remote accessibility is a big advantage of using an Epiphan Pearl or LiveScrypt system. Wherever in the world your connected Epiphan device is located, you can log in to monitor, configure, or control it. But until now there hasn’t been a convenient way to do the same with multiple devices.

          Epiphan Cloud takes out the legwork of multi-device management with a sleek and comprehensive dashboard that displays key information about all your registered devices. You can see at a glance:

          • Operational status: With a Pearl hardware encoder, quickly determine whether it’s idle, streaming, recording, or streaming and recording simultaneously. For LiveScrypt, easily tell if the system is transcribing or standing by.
          • Device info: Serial numbers, IP addresses, and installed firmware version are easy to confirm with Epiphan Cloud.
          • System health: Stats like system load, temperature, and uptime offer insight into the condition of a device.
          • Available storage: With easy confirmation of how much storage space is left on a device, you can ensure you’ve transferred all the files you need and make room for another recording before your next event starts. Epiphan Cloud also shows activity in automatic file upload queues – how many files are being uploaded, their combined size, and how much longer a transfer will take.

          If any of these statistics are more important to you than others, Epiphan Cloud’s customizable UI has you covered. The drag-and-drop interface makes it easy to rearrange elements to put your most essential stats front and center.

          2. Control and collaborate in the cloud

          Epiphan Cloud also offers control over Pearl systems’ encoding settings for live streaming and recording as well as a view of connected audio and video sources. You may still want to dive into Pearl’s web-based UI for more precise control, but having key encoding settings and input and channel previews all in one place can be a huge timesaver.

          For any paired LiveScrypt devices, you get access to all the settings you need to start transcribing, a view of real-time transcriptions, and an audio meter for confidence monitoring and audio optimization.

          Of course, managing a fleet of devices is a team effort. That’s why we built Epiphan Cloud with collaboration in mind. Anyone on your team who’s part of your shared Epiphan Cloud account will be able to monitor or interact with a registered Pearl or LiveScrypt system from any location.

          3. Save time with batch actions

          Epiphan firmware updates come packed with performance enhancements and even brand-new features like Kaltura/Panopto integration and SRT support. Naturally, you’ll want the benefits of the latest updates across all your systems. But it can take awhile to make that happen when you have dozens or even hundreds of devices. With just a few clicks in Epiphan Cloud, you can download and install the latest upgrades to your Epiphan solutions simultaneously. That’ll save some IT time.

          That’s not the only batch action Epiphan Cloud offers. You can also start or stop streaming and recording on multiple devices – which complements yet another convenient feature: the ability to predefine streaming destinations and quickly apply these to any registered device.

          4. Resolve production issues quickly

          It’s a fact of technology: errors happen. A fast resolution is the best response. That takes awareness, and you can’t have eyes on everything at once or all the time.

          But Epiphan Cloud is always watching. A refined alerting system will notify you of any issues so you can act quickly. The platform doesn’t just sound the alarm; it also dispenses enough detail to help you determine what the problem is, and even provides a list of probable solutions to support swift action.

          You can fine-tune this system to alert you only to particular events, such as a change in device status from online to off, a lack of available storage, or a drop in uplink bandwidth. In any event, Epiphan Cloud logs every error. This way you can investigate issues and take action to prevent a repeat occurrence.

          Epiphan Cloud and Pearl firmware update 4.13

          Epiphan Cloud is a big step forward for our solutions. A lot of effort went into reworking Epiphan products to give users access to key device statistics and enable control over groups of systems. That’s why Epiphan Cloud requires Pearl firmware update 4.13 for full functionality.

          There are plenty more reasons to install 4.13 for Pearl, even if you don’t own a fleet of them:

          • Network diagnostics and troubleshooting tools via the touch screen or web-based UI – speed test, ping, trace route, and more
          • File upload scheduling
          • Support for DHCP Options 82 (FQDN) and Dynamic DNS (DDNS) support
          • NDI resource discovery across subnets and external networks (Pearl-2 only
          • SHA-256 and SHA-512 hashing algorithm support for HLS (push) and MPEG-DASH stream authentication

          Manage Epiphan hardware in the cloud

          Looking to learn more about how Epiphan solutions and Epiphan Cloud work together? Check out our Epiphan Cloud product page, or contact us. Our product specialists are always happy to answer questions about our solutions or arrange for a one-on-one demo.

          Expand your Epiphan fleet

          Bolster your video recording and streaming capabilities with Pearl-2, Pearl Mini, or Pearl Nano hardware encoders – enhanced with Epiphan Cloud.

          Compare Pearl Systems

          The post Epiphan Cloud: Key features for easy multi-device management appeared first on Epiphan Video.

          ]]>           https://www.epiphan.com/blog/epiphan-cloud-key-features-for-easy-multi-device-management/feed/ 0           Why SRT, HLS, and MPEG-DASH are the future of streaming https://www.epiphan.com/blog/why-srt-hls-mpegdash-streaming/ https://www.epiphan.com/blog/why-srt-hls-mpegdash-streaming/#respond Tue, 30 Jun 2020 12:55:48 +0000 https://www.epiphan.com/blog/blog-template-copy/ What is SRT, HLS, and MPEG-DASH and why are they important for the future of live streaming? Explore each streaming protocol's benefits, application, and how it works.

          The post Why SRT, HLS, and MPEG-DASH are the future of streaming appeared first on Epiphan Video.

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          As companies and Content Delivery Network (CDN) providers prepare for a future filled with the widespread use of live streaming, the need for more efficient protocols has never been more urgent. Well get ready because the future of live streaming has arrived – and that future is SRT, HLS, and MPEG DASH. Let’s look at what each of these live streaming protocols are, their benefits, and application. And to help you choose the one that’s right for you, there’s a quick comparison at the end of this article.

          Pearl family

          Stream like a pro using SRT, HLS, MPEG-DASH, or RTMP/RTMPS

          Flexible Epiphan Pearl all-in-one video production systems support multiple streaming protocols to enable a wide range of uses cases.

          Discover the Pearl family

          Secure Reliable Transport (SRT)

          Secure Reliable Transport (SRT) is a rising star in the streaming frontier. It delivers high quality video and audio with low latency over the unreliable public Internet. You can actually control the amount of latency and eliminate issues like jitter due to packet loss over poor networks. SRT also makes it easy to traverse firewalls without needing any help from your IT guy and it’s economical to deploy over the existing network infrastructure. Plus,  SRT offers secure streaming with up to 256 bits AES encryption.

          SRT is an open-source streaming protocol that’s gaining popularity because of the SRT Alliance, a collaborative effort involving many industry leaders and developers with the goal to advance SRT adoption. Epiphan Video is a certified “SRT ready” member of the SRT Alliance alongside YouTube, Akamai, Wowza, and others. Popular software that have already integrated SRT include OBS Studio, GStreamer, and VLC.

          Dubbed a “satellite replacement technology”, SRT’s low cost and ability to deliver high-quality content over the Internet in near real time gives broadcasters a viable alternative to expensive satellite technology.

          Benefits

          • Low-latency, high-quality video and audio delivered reliably across the existing, unreliable Internet.
          • Easily traverse firewalls between the SRT source (encoder) and the SRT destination (decoder).
          • Control latency to adjust for changing network conditions.
          • Secure livestreaming with up to 256 bits AES encryption.

          How SRT works

          A dedicated communication link for control and packet recovery is established between the SRT source (encoder) and the SRT destination (decoder). The destination can be a server, CDN, or another SRT device. SRT employs its own packet-loss recovery method using UDP packets over the network, which you can tune to adapt to fluctuating network conditions. When network conditions are poor, more packet buffering can be added to improve video quality. As network conditions improve, the amount of delay can be reduced for a near real-time live stream experience.

          Any firewalls between the SRT source device and the destination must be traversed. SRT has three modes for doing that: Rendezvous and Caller/Listener.

          Rendezvous mode is the simplest and typically requires no IT involvement to traverse firewalls between the SRT source and destination. If you can’t get through the firewall, then the Caller/Listener modes should be used. However, some IT involvement is needed to set up traffic forwarding so that traffic received at the public IP address and SRT port of the destination device is forwarded to the device on the local network.

          SRT application

          SRT excels when used to send a bunch of remote contribution feeds over unpredictable networks to a central destination for production and redistribution, such as in a broadcasting model with remote journalists reporting live on location. It’s also great for bringing in remote guests for low-latency interviews and two-way conversations. Whenever high-quality video and audio over unpredictable networks is needed, SRT far surpasses the quality of any Zoom call, WebEx, or WebRTC stream.

          Epiphan video thumb
          SRT-Application-diagram
          Pearl family

          Looking for a reliable SRT encoder/decoder?

          Pearl all-in-one video production systems fully support secure, high-quality, and low-latency video streaming over SRT.

          Discover the benefits Pearl SRT support

          HTTP Live Streaming (HLS)

          HTTP Live Streaming (HLS) is an adaptive, HTTP-based streaming protocol that sends video and audio content over the network in small, TCP-based media segments that get reassembled at the streaming destination. The cost to deploy HLS is low because it uses existing TCP-based network technology, which is attractive for CDNs looking to replace old (and expensive) RTMP media servers. But because HLS uses TCP, Quality of Experience (QoE) is favored over low latency and lag times can be high (as in seconds instead of milliseconds).

          HLS was originally developed by Apple Inc. as a protocol to stream media to Apple devices. Apple has since developed HLS (push), which is an open-standard streaming protocol on the contribution side that’s available to all devices. Currently, HLS supports video that is encoded using H.264 or HEVC codecs.

          An advantage of HLS is that it is designed to adapt to different network conditions. Different versions of the stream are sent at different resolutions and bitrates. Viewers can choose the quality of stream they want. HLS also supports multiple audio tracks, which means your stream could have multiple language tracks that users can choose from. Other perks include support for closed captions, metadata, Digital Rights Management (DRM), and even embedded advertisements (in the not too distant future). The framework is all there.

          Secure streaming over HTTPS is supported, as well as MD5 hashing and SHA hashing algorithms for user name and password authentication.

          HLS-DASH-benefits

          Benefits

          • High-quality video (up to 4K) and audio delivered reliably across poor-quality networks where low latency isn’t a requirement.
          • Easily traverse firewalls.
          • Adapts to different network conditions and sends multiple video streams at different resolutions and bitrates.
          • Multiple audio track support for things like multi-language streams.
          • Supports metadata and other enhanced features.
          • Economical to deploy and easy to scale using traditional network servers and technology.
          • Secure live streaming using HTTPS and authentication algorithms MD5 hashing and SHA.

          How HLS works

          The approach is a lot like a file transfer. Media segments stream over HTTP port 80 (or port 443 for HTTPS), which is typically already open to network traffic. As such, the content can easily traverse firewalls with little to no IT involvement.

          HLS uses an MPEG2-TS transport stream container with a configurable media segment duration, as well as a configurable playlist size for reassembling the media segments at the ingestion server. Fragmented MP4 is supported.

          Because HLS uses TCP-based technology, the network packet loss and recovery method is intensive. That is one of the reasons for the increased latency. Although some control over the media segment size is available, the ability to reduce latency is limited – especially if the ingestion server requires a specific size of media segment.

          HLS application

          HLS is still the standard for streaming to mobile devices and tablets. You can also use HLS to stream to a CDN that does not support RTMP when low latency isn’t a requirement. It’s important to note that RTMP is already being deprecated by more and more CDNs. HLS is also well suited to securely stream corporate training and town halls over private Local Area Networks (LANs) when low latency isn’t a requirement and network conditions are poor (assuming the network supports HLS).

          MPEG-DASH (Dynamic Adaptive Streaming over HTTP)

          MPEG-DASH is an open standard, adaptive HTTP-based streaming protocol that sends video and audio content over the network in small, TCP-based media segments that get reassembled at the streaming destination. The International Standards Organization (ISO) and the team at MPEG designed MPEG-DASH to be codec and resolution agnostic, which means MPEG-DASH can stream video (and audio) of any format (H.264, H.265, etc.) and supports resolutions up to 4K. Otherwise, MPEG-DASH functions much the same as HLS.

          The cost to deploy MPEG-DASH is low because it uses existing TCP-based network technology, which is attractive for CDNs. But because packets are transported over TCP, Quality of Experience (QoE) is favored over low latency and lag times can be high.

          MPEG-DASH is also designed to adapt to different network conditions. Different versions of the stream are sent at different resolutions and bitrates. Viewers can choose the quality of stream they want. Multiple audio tracks are also supported, as well as enhanced features like closed captions, metadata, and Digital Rights Management (DRM). The infrastructure is there for future developments, like embedded advertisements.

          Secure streaming over HTTPS is supported, as well as MD5 hashing and SHA hashing algorithms for user name and password authentication.

          HLS-DASH-benefits

          Benefits

          • High-quality video (up to 4K) and audio delivered reliably across poor-quality networks where low latency isn’t a requirement.
          • Easily traverse firewalls.
          • Adapts to different network conditions and sends multiple video streams at different resolutions and bitrates.
          • Video and audio codec agnostic.
          • Multiple audio track support for things like multi-language streams.
          • Supports metadata and other enhanced features.
          • Economical to deploy and easy to scale using traditional network servers and technology.
          • Secure live streaming using HTTPS and authentication algorithms MD5 hashing and SHA.

          How MPEG-DASH works and applications

          MPEG-DASH works the same way as HLS and sends short, media segments over HTTP (port 80) or HTTPS (port 443) for easy firewall traversal. It uses an MPEG2-TS transport stream container with a configurable media segment duration, as well as a configurable playlist size for reassembling the media segments at the ingestion server. Fragmented MP4 is supported.

          The high latency of MPEG-DASH is mainly due to the network packet loss and recovery method used for all TCP-based networks. And although MPEG-DASH offers some control over the media segment size, the ability to reduce latency is limited – especially if the ingestion server requires a specific size of media segment.

          Use MPEG-DASH to stream to a CDN that does not support RTMP when low latency isn’t a requirement. It’s important to note that RTMP is already being deprecated by more and more CDNs. DASH is also well suited to securely stream corporate training and town halls over private LANs when low latency isn’t a requirement and network conditions are poor

          Which streaming protocol is right for you?

          While RTMP is by far the most popular streaming protocol,  protocols like SRT, HLS, and DASH are challenging that.

          What do adaptive HTTP-based streaming protocols HLS and MPEG-DASH have that RTMP doesn’t?

          • Multiple audio tracks for one video track for multilingual productions.
          • Inclusion of metadata and other types of embedded content.
          • Digital rights management (DRM) support.
          • Send multiple versions of the stream at different resolutions and bitrates so that viewers can select the quality that suits their network conditions or screen size.

          Scalability is much easier and cheaper for HLS and MPEG-DASH than for RTMP. And RTMP usually requires IT network ports to be manually opened in order to traverse firewalls.

          If latency or poor network conditions aren’t an issue, then HLS or MPEG-DASH beats out SRT. Adaptive HTTP-based streaming protocols deliver the best possible video quality to viewers with different network conditions and are more straight forward to setup than SRT.

          If low latency is needed and you are streaming over unpredictable networks, then SRT is the streaming protocol of choice. SRT establishes its own connection for packet recovery that is way more efficient than TCP. That enables SRT to deliver near real time, two-way communications between a host and a remote guest. And you can tune the latency to adjust for network conditions.

          Latency comparison chart

          Wrap it up!

          CDNs like Akamai have already announced they’re ending support for RTMP. It’s old and expensive to deploy. With new protocols like SRT, HLS, and MPEG-DASH gaining popularity, it’s only a matter of time before RTMP will be a thing of the past. That’s why at Epiphan Video, we’ve added support for SRT, HLS, and MPEG-DASH to our Pearl family of all-in-one video production systems. By adding support for these modern streaming protocols, you can be sure that Pearl-2 and Pearl Mini are ready for the future of live streaming. The Pearl family of encoders are among the few devices in their price range that are certified to stream HLS and MPEG-DASH to Akamai.

          The post Why SRT, HLS, and MPEG-DASH are the future of streaming appeared first on Epiphan Video.

          ]]>           https://www.epiphan.com/blog/why-srt-hls-mpegdash-streaming/feed/ 0           What is Panopto and is hardware lecture capture equipment best? https://www.epiphan.com/blog/what-is-panopto/ https://www.epiphan.com/blog/what-is-panopto/#respond Fri, 10 Jan 2020 13:00:06 +0000 https://www.epiphan.com/blog/blog-template-copy/ See what features create a buzz around Panopto and why fully integrated video recording and streaming hardware is best for your video communications.

          The post What is Panopto and is hardware lecture capture equipment best? appeared first on Epiphan Video.

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          So why all the fuss about the Panopto Video Content Management System (VCMS)? Panopto is an industry-leading VCMS / online video portal for businesses and educational institutions. Its comprehensive features’ list includes video recording, live streaming, video editing, built-in integrations, as well as tools to manage and distribute video content securely across organizations and the Internet with plenty of analytics.

          Most predominately used in education with popular Learning Management System (LMS) integrations, Panopto is a Software as a Service (SaaS) Video Content Management System that’s hosted in the cloud.  Elastic scaling adjusts as your usage and video storage needs change. Free mobile apps are also available. There’s the Panopto Mobile app for iPhone and iPad, as well as the Panopto for Android app.

          Pairing Panopto with fully integrated, hardware video recording equipment is the best way to get reliable, professional looking video recordings for corporate training, lectures, and secure live event streaming.

          lecture capture recording
          Simplify lecture capture with seamless video solutions

          Learn more

          Panopto features out-of-the-box

          Most notable features include in-video Smart Search of all video assets across the library, multiple-source recording, webcasting, customizable interactive multiple-view player, auto-synchronization and indexing of slide presentations, custom thumbnails, a video editing tool, quizzing, captions, analytics, bulk uploads, and more. Uploaded content is saved in Panopto’s secure servers where administrators can define content access rights and privileges. Plus Panopto has built-in integrations for popular LMSs, CMSs, and CRMs.

          Here’s a breakdown of the key Panopto features included in the core product.

          Education solutions banner

          Equip your campus with best-in-class video solutions

          Meet your school’s video production needs with a lineup of flexible and scalable hardware for video capture, streaming, and recording – all centrally managed. Perfect for lecture capture, online learning programs, and more.

          Discover solutions for education

          Panopto’s VCMS

          Panopto’s Video CMS is an end-to-end video platform solution that offers a secure, web-based video portal in the cloud where users can create, manage, and live stream video content. If features video creation and editing, in-video searches, drag and drop video uploading, transcoding, live streaming, interactive video players, quizzing, video analytics, captioning, and the ability to custom brand your video portal.

          Recording video

          Recording multiple video sources directly from within Panopto. Choose from an unlimited number of camera sources, slideshows, and capture a live computer screen in full HD. For all video recordings, a table of contents with video thumbnails is automatically generated for easy navigation. Content from slide presentations, notes and comments are also automatically indexed for search. You can schedule recordings or start unscheduled ad hoc recordings at any time. External hardware encoders like those from Epiphan Video are fully supported for better quality capture. When your session ends, recordings upload automatically to your folder in Panopto. Pre-built video conferencing integrations let you record and share video assets from these video conferencing solutions: BlueJeans, GoToMeeting, Skype for Business, and Zoom. Panotpo administrators can setup single sign-on (SSO) ID management to control access to the recorded content, including: Google Apps, oAuth, SAML, and Active Directory. Other integrations are also available for a seamless video recording experience.

          Live streaming

          Live stream multiple sources to an unlimited audience who can watch using any web browser. Panopto automatically synchronizes all sources and records the stream as it broadcasts. Webcasts are transcoded and made available for on-demand viewing in the library. All the common streaming protocols are supported, as well as secure streaming. Distributed recording of live streams from presenters in different locations is also supported. You can restrict access to specific people or groups in your organization, and require viewers to log in before watching the stream. Free integration with Hive Insights for real-time network monitoring during a live stream is available as a download to troubleshoot Quality of Service issues.

          Uploading and automatic transcoding

          You can upload existing videos and audio files to the Panopto video library using drag and drop, or upload assets in bulk. There are currently no file size limits. Videos are automatically converted for searchability and transcoded for multiple bitrates to optimize VOD playback on different devices and HTML5 web browsers. Supported upload file formats include: AVI, MP4, MPG, WMV, MOV, QT, ASF, 3GP, WMA, MP3, and M4V.

          Get our lecture capture design guide

          Learn how to deploy user-friendly solutions that anyone can grasp and create high-quality lecture recordings that engage your students. Download now!

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          Panopto Smart Search

          Smart Search lets you search inside videos across your entire library. Search for any spoken word or text on the screen. Words contained in PowerPoint or Keynote slide presentations are also indexed, including the presenter’s notes. Any notes viewers take while watching a video using the interactive video player are also indexed and can be searched. Smart Search indexes every video added to the content library using automatic speech recognition (ASR), optical character recognition (OCR), and slide content ingestion – so there’s no need for manual tagging. The Smart Search engine works seamlessly with systems that are integrated with Panopto. Nine languages can be indexed and searched: English, Spanish, German, French, Japanese, Korean, Portuguese, Dutch, and Polish.

          Interactive & customizable video players

          Panopto includes interactive HTML5 video players that you can custom brand and embed on websites. For multiple-source VOD recordings, you can choose which content stream to watch and the layout. All content is synced. Panopto’s interactive, embedded, and mobile video players support full HD and 360⁰ video playback. Adapative playback rates adjust the output based on factors such as available network bandwidth capabilities. Other features of the video player include:

          • In-video searches on any spoken word or text shown on-screen.
          • In-video navigation using the Panopto generated table of contents with thumbnails.
          • The ability to take time-stamped notes that are saved as personal bookmarks for review later.
          • Variable playback speed controls.
          • Interactivity to participate in quizzes, polls, and “choose your adventure” videos.
          • Multi-language caption support.
          • Rating and sharing videos via email and on social networks.

          Built-in video editor

          The online video editor lets you do basic, non-destructive edits so the original recording is preserved. You can trim heads/tails, create clips, switch between different video sources in multi-camera recordings, show machine-generated transcripts as closed captions and edit them for accuracy, and create new video assets by combining different recordings. The editor lets you sync additional slides, embed quizzes, polls, and surveys. It’s even possible to embed links to web-based content like a Google Doc, as well as videos and clips from YouTube.

          Interactive Quizzing

          Using the built-in online video editor, creators can add quizzes to their videos like multiple choice, checkbox, and true/false questions to their videos. Enable options like displaying results and correct answers, including explanations, and whether viewers can retake quizzes. The Panopto video players support all interactive features and enhancements.

          Integrations and APIs

          Panopto offers free, pre-built integrations for Learning Management Systems (LMSs), CMSs, and video conferencing systems with the ability to integrate with any LTI-compatible LMS. At the time of writing this article, Panopto LMS integrations included: Blackboard, Bridge, Brightspace, Canvas, Cornerstone, Moodle, SABA, Sakai, and SAP. Pre-built video conferencing integrations are also available for BlueJeans, GoToMeetings, Pexip, Skype for Business, and Zoom. Other integrations include Hive Insights for managing live events, SharePoint, Salesforce, and InPlayer to monetize your videos.

          Security

          Panopto includes security protocols to protect video assets and live streams. There’s login security, access controls within the video library, and secure live streaming. The login credential types supported are OAuth, SAML 2.0, Active Directory, plus some integrated LMS ID providers. Panopto also offers their own single-sign on (SSO) feature. Panopto administrators can set role-based access rights and privileges to video assets, folders, and playlists for groups and individuals to control who can view, record, live stream, upload, publish, and schedule sessions. Other security settings include strong password enforcement, password expiration, two-factor authentication with SSO, and session timeout. Panopto is hosted on a redundant cluster of networked Amazon Web Services (AWS) servers with state-of-the-art security for their data centers. Panopto also complies with EU General Data Protection Regulation (GDPR) regulations.

          Analytics

          With Panopto, you get video analytics and detailed reports for audience engagement and viewing behavior. From the dashboard, you can monitor the health and size of your video library. You can also connect Panopto with Google Analytics. A free integration with Hive Insights provides dashboards to monitor the quality of your live streams and audience participation. It’s also possible to use Panopto’s API to integrate with any existing analytics system. It’s also possible to export Panopto analytic reports as spreadsheets.

          Pearl powers North Carolina State University’s classroom capture for over 200 classrooms

          Get Inspired: How NC State supercharged 200+ classrooms

          Supported by Epiphan’s all-in-one Pearl production systems, NC State created a seamless lecture capture solution that covers the entire campus.

          Watch video now

          Why choose fully integrated video recording equipment for lecture capture?

          There are advantages to choosing a fully integrated hardware encoder as your lecture capture video recording device, such as better reliability when using a dedicated device to record video. Dedicated video recording hardware also makes it less complicated for users, who no longer have to worry about setting up their laptops to capture audio and video – saving money and reducing support calls.

          Dedicated video recording equipment that has full API integration with Panopto should provide a seamless and user friendly experience. Some key attributes to look for in a fully integrated hardware video encoder as a lecture capture and video recording device include:

          • Reliability – Ideal hardware video recording equipment is robust and reliably encodes, streams, and records multiple video sources for campus-wide capture without fail. Captured HD video (1920×1080) should be crystal-clear with crisp audio. On-board monitoring for instant feedback that your video/audio sources are all ok is also important to help ensure every lecture recording is a success.
          • Seamless & easy setup – Integration with Panopto should be seamless and work with what you already have. That means in-house administrators and technicians can setup and register the video recording equipment without needing outside expertise or custom coding. You want equipment that Panopto instantly recognizes and a seamless user experience so that users can schedule VOD recordings and webcasts in Panopto without added complication. Integrated remote recorder hardware should support both unscheduled (ad hoc) and scheduled sessions.
          • Flexibility – The hardware video encoder should support multiple video sources and pro audio so you can record and stream multiple video sources in a variety of installations, lecture halls, conference rooms, and even medical simulation labs. Instructors should be able to use any combination of laptops or PCs with HDMI outputs for presentations, HDMI document cameras, high resolution cameras, SDI or NDI video sources, and microscope cameras to name a few.
          • Security – Keep your information safe using lecture capture video recording devices that incorporate network security protocols like 802.1x to authenticate the device on local networks, LDAP for user authentication, has the hardened OS of a single-purpose video recording device, HTTPS support for secure administration, and supports RTMPS for secure webcasting.
          • User friendly – In-house video technicians and administrators need easy access to monitor the health of the video equipment directly on the device, as well as remotely using Panopto. Integrated lecture capture equipment should also have an easy on-boarding path and offer it’s own remote administration options and interface for more comprehensive diagnostics and control.

          Panopto – the final word

          Panotpo is a VCMS solution that’s quickly advancing in popularity. It offers the kind of features people are looking for in a comprehensive VCMS.

          A typical lecture capture scenario uses at least two video sources, and for most schools today this is sufficient. However, the demand for high quality multi-source lecture capture is rising. When you pair Panopto with a fully integrated, hardware video recording device like the Epiphan Pearl Mini or Pearl-2 video production system, professional quality video recordings with multiple-sources is easily achievable.

          Pearl hardware encoders have full API integration with Panopto, which makes it easy to schedule and manage multiple source VOD and streamed events directly within Panopto. Pearl’s built-in touch screen and Admin panel allow for quick, visual event monitoring plus one touch starting and stopping of ad hoc recordings on the fly. The touch screen also enables users to authenticate for secure, ad hoc event creation directly on Pearl. Plus so much more!

          For more information about Epiphan’s video recording, streaming, and live video production switching equipment, visit Epiphan.com and live chat with our knowledgeable product specialists on week-days from 9 am to 5 pm (Eastern).

          The post What is Panopto and is hardware lecture capture equipment best? appeared first on Epiphan Video.

          ]]>           https://www.epiphan.com/blog/what-is-panopto/feed/ 0           6 reasons to use a hardware encoder with your school’s CMS https://www.epiphan.com/blog/hardware-encoding-lecture-capture/ https://www.epiphan.com/blog/hardware-encoding-lecture-capture/#respond Fri, 23 Aug 2019 15:40:04 +0000 https://www.epiphan.com/blog/blog-template-copy/ Combined with a video content management system, hardware encoders offer major advantages over software encoders for lecture capture. Find out what those are – and why your school should make the switch.

          The post 6 reasons to use a hardware encoder with your school’s CMS appeared first on Epiphan Video.

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          Lots of schools use a video content management system (CMS) like Panopto or Kaltura for lecture capture. But many are missing out on big benefits like improved performance, reliability, and affordability. How can your school gain these advantages? With one change to your lecture capture system: shifting from software encoding to hardware encoding.

          If you’re wondering what’s so special about hardware encoding, you’re not alone. Many schools see no reason to bring in a hardware encoder when they’ve been managing just fine with custom-built PCs and recording software like Panopto Recorder or Kaltura Recorder. That’s because a lot of people aren’t aware of the many perks of hardware encoding.

          It’s true that lecture capture can be as simple as perching a laptop on a podium, running a slide deck, and capturing the lecturer via a built-in or USB webcam. But today’s students are huge media consumers and will recognize when a video’s quality is lacking. To keep students engaged, and to compete with other schools fighting for enrolment, professional-grade video and audio equipment are must-haves. At the very least, that means an HDMI camera and professional audio equipment. For bonus points, you can throw in a second camera to add another perspective to lectures, such as an audience shot or a wide-angle view.

          What is a hardware encoder?

          As dedicated appliances, hardware encoders are tailor-made for video recording and streaming. All the components in a hardware encoder were handpicked for this purpose and the underlying software specially designed for it. Compare this to a software encoder – an application running on a computer made of multi-purpose parts and alongside dozens of other processes – and you start to understand why a hardware encoder is the better option.

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          Meet your school’s video production needs with a lineup of flexible and scalable hardware for video capture, streaming, and recording – all centrally managed. Perfect for lecture capture, online learning programs, and more.

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          Why hardware beats software

          Hardware encoders offer major advantages over software encoders that any school would benefit from:

          Better performance

          Hardware encoders perform better than their software counterparts. Why has to do with the major difference between the two noted above: hardware encoders are designed from the ground up for video streaming and recording. They’re able to dedicate more computing power to the job of encoding video and audio, whereas software encoders have to compete with resource-hungry operating systems, apps, and processes. The performance gap widens when you throw in more video or audio sources, or stream to multiple platforms.

          More flexibility

          Fewer resources to dedicate to video and audio encoding isn’t the only limitation of software encoders. Without a capture card, software encoders can’t work with non-USB video signals. They’re also limited to USB or 3.5 mm microphones unless you have a separate audio interface, and can typically only capture audio from a single source.

          Hardware encoders offer far more flexibility with multiple inputs for video (e.g., USB, HDMI, SDI) and professional audio (i.e., XLR). This versatility creates a lot of possibilities for lecture capture. For example, our Pearl Mini all-in-one video production system includes inputs for USB and HDMI, along with combined XLR/TRS audio inputs and stereo RCA. A lecturer can capture a presentation running on a laptop while an HDMI camera and professional microphone record them in high-definition with crystal-clear audio.Hardware encoder vs software

          Superior reliability

          You’ve probably seen at least one video of an ill-timed Windows update or system crash during a broadcast or live stream. The same can happen during lecture capture, resulting in a fractured or incomplete recording. Hardware encoders running a non-Windows operating system such as Linux are much less prone to these kinds of interruptions. Adding to their reliability, hardware encoders also need fewer cables and components to do the same job as a custom-built PC – which means fewer points of failure. With this added peace of mind, users can focus more on their lecture and less on the technology capturing it.

          Pearl powers North Carolina State University’s classroom capture for over 200 classrooms

          Get Inspired: How NC State supercharged 200+ classrooms

          Supported by Epiphan’s all-in-one Pearl production systems, NC State created a seamless lecture capture solution that covers the entire campus.

          Watch video now

          Superior reliability

          You’ve probably seen at least one video of an ill-timed Windows update or system crash during a broadcast or live stream. The same can happen during lecture capture, resulting in a fractured or incomplete recording. Hardware encoders running a non-Windows operating system such as Linux are much less prone to these kinds of interruptions. Adding to their reliability, hardware encoders also need fewer cables and components to do the same job as a custom-built PC – which means fewer points of failure. With this added peace of mind, users can focus more on their lecture and less on the technology capturing it.

          Simpler installation and management

          The benefits of pairing a hardware encoder with a CMS go beyond the lecture hall. It’s much easier for IT staff to set up and manage a fleet of hardware encoders than it is to update and maintain numerous custom-built PCs with their operating systems, recording software, and capture card setups. Adding to these maintenance woes, all the parts required to turn a PC into a capable video and audio encoder probably come from different manufacturers.

          Hardware encoders require occasional firmware upgrades, which you can often install remotely. Computers need frequent updates to the operating system as well as to applications that have nothing to do with streaming and recording but are nevertheless critical (e.g., antivirus programs). Simplifying this process with a hardware encoder frees up IT resources for other projects that are important to your school.

          Greater affordability

          When it comes to large-scale lecture capture, hardware encoders offer better value at a lower overall cost compared to custom-built PCs. For one thing, opting for a hardware encoder eliminates the expense of operating system and software licenses broad enough to cover every lecture capture PC on campus. Schools that use software with a CMS may also be contracted to update their workstations every two or three years, which can cost a couple grand per unit.

          Certain hardware encoders can also capture footage from multiple rooms, lowering capital expenditures for schools eager to equip every classroom with lecture capture technology.

          Easier operation

          Some hardware encoders include CMS integrations that can greatly simplify lecture capture. For instance, our Pearl Mini and Pearl-2 hardware encoders are fully integrated with Panopto and Kaltura. Users who register Pearl to either platform can create, start, and stop unscheduled events via Pearl’s built-in touch screen, authenticate to the CMS from the touch screen to automatically upload recordings to their folder, and more.

          CMS integration can turn a hardware encoder into a hands-off lecture capture solution. Whereas an operator must launch and interact with a software encoder to start or stop a recording or stream, a hardware encoder with CMS integration can trigger these events automatically based on a defined schedule. Combined with automatic file uploading, the result is a far simpler workflow with less administration required after each lecture.

          Optimize your school’s lecture capture

          Check out the Epiphan website to learn more about how our Pearl hardware encoders can help your school master lecture capture. If you have any questions, let us know. One of our product specialists will be happy to help.

          Get our lecture capture design guide

          Learn how to deploy user-friendly solutions that anyone can grasp and create high-quality lecture recordings that engage your students. Download now!

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          The post 6 reasons to use a hardware encoder with your school’s CMS appeared first on Epiphan Video.

          ]]>           https://www.epiphan.com/blog/hardware-encoding-lecture-capture/feed/ 0           How to record lectures: software vs hardware https://www.epiphan.com/blog/how-to-record-lectures/ https://www.epiphan.com/blog/how-to-record-lectures/#comments Tue, 20 Nov 2018 04:17:18 +0000 https://www.epiphan.com/blog/live-streaming-platforms-copy/ How to record lectures with one input vs recording media-rich lectures. Comparing software- and hardware-based technology and looking at ideal use cases.

          The post How to record lectures: software vs hardware appeared first on Epiphan Video.

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          We’ve talked about how to record lectures in our past blog posts, however due to growing interest in flipped classrooms and blended learning (i.e learning using online video lectures), we’ve decided to revisit the topic.

          The demand for high quality video lectures is higher than ever. Teachers who use the flipped classroom method are always looking for ways to make better and more engaging videos for their students. Lecture capture is not solely limited to university and school environment. Independent educational content creators use platforms like Skillshare, Udemy, and Teachable to upload their video lessons.

          So what are the ways to record a quality lecture from a technical point of view? Well, as the title suggests, lecture capture options could be broken down into two categories: software- or hardware-based lecture capture. Essentially, software-based lecture capture uses a computer with some additional capture software, while the hardware-based model implies using a separate lecture capture appliance.

          lecture capture recording
          Simplify lecture capture with seamless video solutions

          Learn more

          How to record lectures using software

          By lecture capture software we mean using your computer with specific type of software only to record a lecture (also called screencast software). Standard lecture capture software allows you to capture everything that is happening on your computer screen, plus the audio from a microphone, as well as the video feed from a webcam. This means you could have a finished video file, complete with on-screen instruction, a talking head, and a voice-over commentary.A typical software-based lecture capture session might go something like this:

          1. Lecturer sets up a filming studio: a computer with capture software, a connected webcam and microphone (perhaps a graphic tablet for drawing on your screen), good light, and a neutral background. We will be doing a post on recording studio setups in the future, meanwhile, check out this amazing article on how to set up a studio.
          2. Lecturer pulls up all learning materials on the computer screen. This may include a powerpoint presentation, a video, web links in a browser, images, etc. This also includes a window with the webcam feed.
          3. When they are ready to go, they press “record” inside the lecture capture software and go through the material, switching between slides and narrating the lecture. Every frame, mouse movement, and sound is captured. Some lecturers use a clicker for smoother transitions between slides.
          4. When finished, the lecturer presses “stop” in the software and the file is saved. They can then edit the video: crop out bad moments, weld sections together or cut them into smaller segments, trim heads and tails, and add titles and captions.
          5. After editing, the software exports the final video file and it is now ready for distribution.
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          Equip your campus with best-in-class video solutions

          Meet your school’s video production needs with a lineup of flexible and scalable hardware for video capture, streaming, and recording – all centrally managed. Perfect for lecture capture, online learning programs, and more.

          Discover solutions for education

          Examples of lecture capture software

          There is a large variety of downloadable software designed for lecture capture. Among the most popular are products by Techsmith: their Camtasia and Snagit capture software is used by many, but they also have a product specifically designed for educators called Relay. What sets Relay apart from basic screen capture software is that it is a true lecture capture solution. It provides advanced features like LMS management, in-video quizzes and learning analytics.

          Other examples include OpenCast, Brightspace Capture, Screen Grabber Pro, and others.

          Screenshot of TechSmith Relay

          Generally, lecture capture software is not free (pricing differs for each software), however, there are free screencast software options out there. One example is OBS (Open Broadcast Software). While being able to do capture a screen, OBS does not provide post video editing capabilities. Editing must be done is a separate app.

          Who should use lecture capture software?

          Software-based lecture capture is a solid choice for individual lecture creators, recording videos only from time to time and in a solo studio setting. Lecture capture software is also worth considering if your lecture consists mostly of presentation slides and your voice narrating the material, or perhaps recording podcasts.

          Using solely a computer with lecture capture software may not be ideal in an auditorium or class setting because of equipment limitations: a webcam will not be able to capture video in great detail, and the microphone’s USB cable would make it difficult for the lector to talk and move around. In addition, setting up and worrying about the computer/software every time might get cumbersome.Software-based lecture capture

          Pros

          • More economical initial setup
          • Lots of post editing power
          • Good choice for recording audio+computer screen only

          Cons

          • Not always reliable (software crashes)
          • Only basic lecture setup with limited in number of inputs
          • Software licensing and support costs
          Pearl powers North Carolina State University’s classroom capture for over 200 classrooms

          Get Inspired: How NC State supercharged 200+ classrooms

          Supported by Epiphan’s all-in-one Pearl production systems, NC State created a seamless lecture capture solution that covers the entire campus.

          Watch the video

          How to record lectures using hardware

          Using hardware to record lectures means having a dedicated appliance for connecting all your video and audio sources and having it do all the capture and recording. Here is how it works:

          1. Similarly to software-based lecture capture, the lecturer would set up the filming studio, but instead of connecting all the inputs to the computer, they would connect them to a lecture capture box like Pearl Mini. This may include PTZ cameras, laptops with presentation slides, audio, document cameras and even microscopes. Lecture capture appliances are capable of capturing different types of inputs such as HDMI, USB, XLR and analog audio.
          2. With all the sources connected, the lecturer would then press the “Start Recording” button on the unit or the unit’s web/mobile UI and the lecture will begin recording.
          3. The lecturer would then proceed to explain the material (this would work great in both an auditorium with students as well as personal studio setting).
          4. When finished the lecturer would press “Stop Recording” on the device or the UI. The file is saved internally, on a thumb drive, or is automatically pushed to a CDN, LMS, or other destination of choice, depending on settings.

          A lecture capture device like Pearl Mini also allows the lecturer to create custom layouts, combining and switching between between them during recording. This means that upon completion, the lecturer could have a finished lecture file. They also choose to record each input individually (in sync) and then combine them in editing software as they see fit. The best part is that the lecturer will be able to focus solely on presenting the lecture while the box does all the capture work. Which brings me to…

          Who should be using hardware-based lecture capture?

          Lecture capture hardware is great for auditorium and classroom setting, where lecture recording happens regularly and frequently. Hardware-based lecture recording is an efficient and reliable way to capture source-rich, multi-input presentations. Many schools and universities already have lecture capture hardware permanently installed in auditoriums. All the lecturer has to do it press “record” on a special panel or web UI.

          For a completely hands-off experience, many rooms are even equipped with lecture capture scheduling systems (integrated with the hardware). This allows for lecture recording to start and stop automatically. This way, the lecturer is not distracted by having to juggle recording and presenting at the same time. For instance, Epiphan’s Pearl lecture capture hardware family is integrated with Kaltura, an open source video platform used by many universities. This hardware integration means effortless scheduling through the school’s learning management system.While the words “permanently installed hardware” may lead some of you to believe that lecture capture hardware is something very rigid and stationary, built into the walls forever, that’s actually not always the case. For example, a device like Pearl Mini is ultra lightweight and portable, making it a good choice for setting and capturing ad hoc lectures. This makes Pearl Mini a suitable solution for how to record lectures on the go and in impromptu studios.

          An example of a lecture capture hardware appliance (Pearl Mini)

          Pros

          • Records full HD and SD video and audio
          • Captures multiple sources such as document cameras, lecture cameras, or tablets, in sync
          • Reliable
          • Less editing after recording
          • Easy to use, set-and-forget: could be started and stopped with 1 button. A more hands-off experience

          Cons

          • A significant upfront investment (but lower recurring fees)

          The hybrid option: how to capture lectures using software with a little bit of hardware help

          Let’s say that the software-based lecture capture scenario practically satisfies your case, but you wish you could to bring in one HDMI source into the lecture. This could be the feed from a DSLR camera, or a document camera, or perhaps even a microscope. You could do that using a capture card like AV.io HD.Software + hardware-based lecture captureConnect your source via the capture card, and from there use the software-based lecture capture model. The only caveat here may be the processing capabilities of your computer. If the computer processing power is on the lower side (or the computer itself is old) – it may have a more difficult time capturing in HD and maybe even dropping frames.

          A few words about video lecture management and distribution

          We also wanted to briefly mention a special kind of lecture capture software, which in addition to lecture capture has a much wider range of functionality. This includes keeping track of all media assets, distributing lectures to students, tracking student progress using built-in quizzing and analytics, and much more. This special type of software is known as Learning Management Systems (or LMS). LMSs are often directly integrated with the school’s existing hardware and AV equipment to make it easier for staff to track, store, and distribute all media materials.

          Today, most top universities have multiple rooms and auditoriums fitted with easy to use lecture capture systems, integrated with the school’s LMS. This makes it easy for professors to schedule and record lectures. The LMS automatically uploads and distributes learning materials among students. We will be sure to do a more detailed post about Learning Management Systems in the future, it’s a very interesting and deep topic.

          How to record lectures - online lecture UI

          Online video course. Example LMS UI.

          In conclusion

          We hope this article helped you to better understand the two different ways of how to record lectures. To sum it up, using software to record lectures is great for individual creators while hardware is great for capturing lectures with multiple inputs. Creating interesting and rich lectures is very important in today’s dynamic learning environment. Schools and universities rely on flipped classroom and blended learning techniques, and we believe that efficient and high quality lecture capture is a huge part of that.

          Get our lecture capture design guide

          Learn how to deploy user-friendly solutions that anyone can grasp and create high-quality lecture recordings that engage your students. Download now!

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