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erfavoc [2019/12/18 12:07] – robbi5 | erfavoc [2020/10/29 10:57] (current) – [Framegrabber / Capture Cards] derpeter | ||
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- | = Erfa Video Setup | + | = Erfa / (Hack)space |
Live-Streaming and recording setups in CCC Erfas and Hackerspaces. \\ | Live-Streaming and recording setups in CCC Erfas and Hackerspaces. \\ | ||
Recordings of these groups can be found on [[https:// | Recordings of these groups can be found on [[https:// | ||
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In most cases this will lead you to semi- / professional cameras which can be expensive. It may be a good option to look for used ones. A entrance level cam is the [[hardware: | In most cases this will lead you to semi- / professional cameras which can be expensive. It may be a good option to look for used ones. A entrance level cam is the [[hardware: | ||
A much better lens can be found in many Panasonic cams like [[hardware: | A much better lens can be found in many Panasonic cams like [[hardware: | ||
+ | |||
+ | A list of cameras which are also suitable to some extend can be found in our [[distributed-conference]] page. | ||
+ | |||
== Audio | == Audio | ||
In most situations a headset results in the best audio quality, especially with untrained speakers. As the speaker don't alternates the distance between mic and mouth this also makes it easier for the audio mixer operator. | In most situations a headset results in the best audio quality, especially with untrained speakers. As the speaker don't alternates the distance between mic and mouth this also makes it easier for the audio mixer operator. | ||
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== Encoding / Recording / Mixing | == Encoding / Recording / Mixing | ||
- | Dies kann alles in einem PC erfolge wenn genug CPU vorhanden ist. | + | A machine that is capable of running a software video mixer, encode the results for recording and streaming and that has capture devices is the central point of the setup. |
- | ... | + | In our setup we run voctomix on it, Open Broadcast Studio (OBS) is another alternative. We recommend to run Linux here but if you into pain windows could work for to with obs. |
- | == Framegrabber | + | == Framegrabber |
+ | Capture cards can be either PCIe based or USB 2/3 depending on budget and use case. We use mostly blackmagic decklink [[hardware: | ||
+ | A (probably not complete) list of alternatives can be found here [[hardware: | ||
+ | capturing slides from speaker notebooks can be quite challenging. E.g. Apple Computer tend to believe the presentation belongs to Apple so they encrypt the output, also you will run | ||
+ | into hackers with there hand tailored graphic stack which output 1337x42 and you need to somehow scale that. Here are devices that can do scalling, or grabber cards that are agnostic regarding the input | ||
+ | a good option. | ||
== Streaming | == Streaming | ||
- | VOC CDN can be used by all erfas/frinds | + | VOC CDN can be used by all erfas/friends |
we can either pull a "voc default mkv" from an icecast running at your side or offer an RTMP endpoint. | we can either pull a "voc default mkv" from an icecast running at your side or offer an RTMP endpoint. | ||
Both ways the stream will end up in our cdn and you can use our [[software: | Both ways the stream will end up in our cdn and you can use our [[software: |