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<br>Ptz-cameras are purposefully manufactured for pc video shooting, streaming solutions austin and usually have motorized pan-tilt-zoom controls. They are one fairly easy way to start streaming. – Cams tend to be easy to use, but the picture quality in budget models can be the best. They usually output via hdmi (this requires an hdmi encoder – more details below). – Dslrs are usually more sophisticated, with different photo settings and different levels of video streaming support: make sure your dslr has a “clean hdmi output” (this causes the page to be configured to have screen graphics output to the hdmi channel) and will not give video limit. Interchangeable lenses make dslr cameras versatile and allow for superior image quality and creative boundaries. A dslr may need an ac power adapter, an external pan/tilt mechanism, and control fragments like manual focus and zoom are no longer motorized (no external mechanisms).<br>For more comprehensive information on the future of the camera, check out the recommended videos below.<br>But before you go, and buy a camera, you should first consider the physical layout of the church, lens/zoom norms, where to mount the camera, and even how to connect different cameras to your laptop. All of this will enable you to choose the right camera for your situation and that is what we will cover in the following sections.<br>Connecting your camera to your computer<br> Most cameras output video in one (or sometimes several) of several ways, usually via: usb, hdmi, sdi or network protocol programs like ndi or rtmp. The following maximum cable lengths are averages and depend on the signal, wire and environmental conditions. <br>Usb is the most convenient and economical option because it connects directly to the computer without the use of a hardware encoder. One drawback is that the maximum length of the usb cable is only 15 feet. If this is exceeded, a usb extender may be required.<br>Hdmi is widespread and used in general digital slr cameras. Maximum cable length is ~50 feet.Note that some dslr cameras have micro hdmi connectors.If your gadget has an hdmi output, only will want an hdmi encoder.(See below)<br>Sdi is the second popular output. The maximum cable length ranges from ~300 to 1200 feet. If the device has an sdi output, an sdi encoder will be required. (See below)<br> Both ndi and rtmp are network protocols.This means that the camera will connect to the world wide web while on an ethernet cable or router. The maximum length of an ethernet cable is ~300 feet. If the camera supports ndi or rtmp, an hdmi encoder will not be needed, but some configuration of both the network, on the camera, and the software to learn the streaming signal will be required.<br>I do not recommend streaming the signal from the camera over a router. In my experience, i have encountered the problem of variable signal latency, which makes synchronizing music and video a constant, weekly struggle, and nothing detracts as much from the live feed as lip-syncing to the audio.<br>Coders / capture cards<br>If your camera outputs a signal via hdmi or sdi, your computer needs a way to capture that video. This requires an hdmi or sdi encoder or “capture card”. You can buy encoders that connect via usb or thunderbolt, or like pcie cards (for laptops). You can also choose internet-connected encoders. They come in single-channel and multi-channel options. Encoders can support 1080 or 4k input resolution (if the camera supports 4k). If the effort involved is not going to shoot in 4k form, a 4k resolution camera/encoder allows you to provide cropping/digital scaling while maintaining quality.<br>Remember that if the camera is to be connected to a laptop via usb, then the encoder is not necessary.<br>Tip: hdmi encoders can be used for more than just camera capture. You can use it to capture the output of a projection system to be included in the broadcast. We are working on a second hdmi encoder and hdmi splitter for the projection display so that the same content that is displayed on the projector in the sanctuary (e.G. Lyrics/scripts from easy worship or speaker slides) can be included in the live broadcast:<br>Planning camera location, angle and framing<br>In addition to connectivity, another important factor for you camera/lens is the location, angle and framing of your shots.<br>In a church, the subject happens to be a speaker, worship group or choir, or perhaps a combination of these. You may need to pan and zoom the camera. To labor with transitions or programmatically crop the shot if necessary. You may need to zoom out to hold the entire scene, or zoom in on a speaker. You may think of temporary or permanent mounting the camera to a wall, ceiling, or tripod.<br> Given the possible mounting locations, you need to calculate the angle of field of view (fov) needed to construct the shot (aka the required lens magnification). If it is a zoom lens, it will retain two fov values – a smaller angle (telephoto lens) when zooming in and a larger angle (wide angle) when zooming out. Usually, lenses with higher magnification are more expensive.<br>For example, here are the nominal horizontal fov values for the ptz-camera group (but it’s worth considering that “3x” or tens-of-fold” zoom is marketing fluff with no standardized basis, so fov needs to be purchased in the specs of the specific model):<br>Model telephoto fov wide-angle fov price huddlecam hd 3x zoom 36° 82° $399 huddlecam hd 10x zoom 7° 57° $899 huddlecam hd 20x zoom 5° 58° $1099<br> Here are some estimates of horizontal fov for many common dslr lens focal lengths. Note that the “effective” fov depends on the crop factor of the sensor:<br>Focal length 1x full frame 1.6x crop 2.0x crop 35mm 54° 36° 29° 50mm 40° 26° 20° 70mm 29° 18° 14° 100mm 20° 13° 10° 200mm 10° 6,five and a half,1° 500mm 4,two or three.6° 2°<br>Fov calculator / frame estimator<br> Here’s a quick calculator that helps you determine the size of the frame, depending on the distance from the camera to the subject and the horizontal fov of the lens:<br>If your camera and the incoming video signal is 4k and the output stream is 1080, there’s also a slider you can really play with to shape the frame: digital zoom. Technically you will get a wonderful opportunity to form a frame 1920×1080 from a 4k frame, and it is as if 70% closer to the subject. We make such a view with a fixed 50-mm lens and with digital “zoom” we get shots of the whole scene or bring the speaker closer to the waist with acceptable quality. In studio mode, you can simply zoom in on the movie in the form of a preview and then zoom out to the present. This digital zooming has the added advantage of not touching the camera (as with a zoom lens), causing noticeable video shake.<br>So framing, fov, cables, connectivity, and editing can help women decide which camera and lens are best suited for the purpose. Needs.<br>Multi-camera<br>In general, the basic concepts described above can be extrapolated by adding 1) an additional camera, 2) an additional capture board (or multi-channel capture board), and 3) all of the above planning, editing, and cable installation. The streaming software would have to support multiple inputs (i know firsthand that obs and vmix do), and may have to mess around with synchronizing each video input with audio. Obviously, adding cameras increases the price and complexity of the system.<br> However, there are practically cheap ways to make the stream more dynamic and interesting.<br> For starters, you can use the “digital zoom” described above to make the stream more dynamic by simply not inserting a second camera. If you change the “digital zoom” every few minutes (for example, to beautifully transition from the first obs scene to another with different framing), you can make the stream visually interesting from the first camera:<br>Second, if your streaming software supports ndi inputs (i know obs and vmix do), then, with the ndi camera app, you can relatively easily turn your iphone into a second or wide-angle camera. (Some claim for android, but this mess, in my opinion, is less stable and employable in real world conditions). The phone obedient to be in the same internet with the processor, here running obs / vmix. Resolution and efficiency may vary based on the gadget or net you’ll want to check this out and possibly find how it’s most effective for secondary, creative or transitional shots.<br>Streaming software<br> So, from now on, once we have considered what camera(s) we will use and how it will connect to the computer (e.G. Usb, sdi or hdmi encoder, etc.), We need streaming software, also known as video mixer, video switcher or video streaming software. Client software for streaming performs many functions, but at its core it makes a video stream from various components (video inputs, audio inputs, desktop capture, graphics, overlays, etc.) And transmits the result to the client’s specified location.<br>There are many methods of streaming software, including obs studio, vmix, wirecast, ecamm, etc. There are even online, browser-based solutions from streamyard, be.Live, and more. The choice depends on your finances and whether your computer device is running osx or windows.<br>This publication will not spend much time comparing all of the above solutions – there are many excellent comparison articles available. We tried vmix and compared it to the darm obs studio. In the end, vmix and obs solve the same technical problem, including many options – from audio and video to graphics, compositing, filters and processing. So while obs is utilitarian and not perfect, it’s a great free software. In addition, it has an active community, and the risk is as valid on windows computers as it is on macs.<br>Although we don’t have time to go over all the intricacies of obs, ajay holmes has put together an excellent video with helpful tips on customizing and using obs in religion.<br>Computer/workstation<br>A powerful computer is used for professional video streaming.You will need a high end quad core processor (or should) such as an i7 or other ryzen. I would recommend a desktop computer, as laptops tend to be equipped with underpowered processors (even if they are labeled as i7 or quad-core). You will need at least 16gb of ram.<br> As for the gpu, you will have more options for streaming settings if it supports hardware encoding, such as nvidia gtx 1660 or better (or the previous generation, gtx 1060 or better). If you have such a gpu, your streaming software has the ability to work its use to encrypt the video stream. In obs this option is located on the settings page, output, streaming, encoder:<br>The use of gpu to encrypt the video stream can significantly reduce the burden on cpu, which will give him the opportunity to perform other issues (video playback, sound processing, filters, etc.), And also reduce the likelihood of stuttering or dropouts. There are mixed reviews about the quality of gpu-coding, although in later generations of video cards it has been improved. As a result, if among your friends and acquaintances there is a powerful graphics processor, explore the emerging opportunities to ensure that the computer for streaming.<br>Note: you may not need a computer<br>Note that a computer may not be needed for every system. There are hardware encoders (for example, for example, that can send video directly to an rtmp service (like polystreamer, facebook, or youtube). In this configuration, you will not use po, for streaming either. The encoder will start streaming video as soon as it finishes powering on. Despite the potential cost savings, this configuration has less flexibility and complexity in configuring the encoder. I only mention this option if a streaming computer is simply not feasible.<br>Sound to stream<br>If you require your camera’s built-in microphone this section can be skipped. But most churches very likely still have some form of audio mixer. There are several ways to bring audio to the stream.<br>You usually want to mix the audio with the video stream in a streaming program on your computer. The usual choice for this is the computer’s audio interface or line-in audio input. Audio processing in the program allows you to adjust the audio/video sync offset in obs see the sync offset section in advanced audio properties). Synchronization of audio with video is critical for high quality broadcasts. In obs there is a “delay viewer” filter that helps with this, so if you are given multiple camera inputs with any kind of delay, you have the option to add different delays to equalize everything. In obs these settings can be found by right-clicking on the audio or video source and finding the “filters” menu, or in the “audio mixer” panel – in the gear album:<br> However, in some situations it may be more affordable to connect the audio directly to the device – a camera or hdmi encoder may receive a line audio input, as shown here:<br>Multistreaming into the program itself is possible, but should it be?<br>It should be said that some streaming programs, even vmix, can multicast (also called simulcast) your stream to multiple destinations – however, you should keep in mind that there are costs associated with this.<br>For starters, encoding and transmitting multiple copies of your stream will consume more of your cpu or gpu resources, and the normal functionality of the downloaded internet. Download channel ingress is usually very limited, often many times less than download channel ingress. For example, people cable modem connections provide download speeds of 80-100 mbps, while uploads are only 5-10 mbps. To establish download channel traffic there is a way to watch speedtest, but also monitor cpu / gpu usage in the general monitor or task manager. I would recommend not exceeding 75% utilization of both resources to take into account random spikes.<br>Second, and probably even more important when streaming simultaneously on facebook and youtube using virtual streaming specials either of us will need to go into the facebook and youtube control panels and set up streams whenever you wish to go live. Both sites should have several actions, and customizations before everything goes live ready (and sometimes they change their dashboards). This is hard work for several mins at the extremely inopportune moment when the broadcast is about to start.<br>But with cloud-based multithreading technology, such as polystreamer, your software encodes and transmits only a specific copy of the video stream. Servers are in charge of forwarding that stream in multiple directions. With this, a novice doesn’t need to travel to each web resource – just press start stream” on the polystreamer dashboard and the integration takes care of the rest. Watch the 3-minute video to familiarize yourself with how everything works:<br>Our setup<br>There’s no one-size-fits-all live streaming system, but here are a number of substances that our pastry chefs utilized in our system:<br>We ended up assembling a canon sl3 dslr camera since we already had dslr skills. It has a pure hdmi output, has no limit on recording implementation time and shoots in 1080 with a cropped factor of 1.6x or 4k with a cropped factor of 2.6x. We experimented with a variety of lenses, but the 50mm lens when shooting in 4k, given our distance and scene, gave us a digital zoom with an interesting range of shots.<br> We captured the camera’s output via a blackmagic decklink mini recorder 4k encoder, and the camera was powered via an ac adapter. We mounted the camera on the wall by means of a short and sturdy boom bracket. On it we mounted a motorized pan/tilt head bescor. The camera is installed to stay on the audiovisual booth, in the far corner of the sanctuary. Don’t think about watching our videos of worship services (e.G. November 22, 2020) to see what results we take and analyze them, for example, from april 19, when we were still using iphones.<br>Recommended resources<br>Jake gosselin’s channel (churchfront) has a lot of great real-life stories about tech for churches, such as this one about shooting on a budget camera (which convinced people not to explore video cameras).Regardless of the fact that the channel does a great assortment of fantastic information, take into account that many of their videos focus on more expensive equipment or services, and they sell courses and other resources.<br><br><br>

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