While this heritage is a testament to a strong LUG, there are only about 20 people who regularly attend meetings, and thus get the benefit of these talks. With a LUG membership of around 800 (my best estimate from mailing list figures), this is a tiny fraction of our community. People who can't make it have been requesting videos of talks for a while, and recently Jonathan Carter brought his camera, and we started playing with videoing them. He has been stuck in Johannesburg for a few weeks and left me his camera, so I've been playing around with encoding.
So far, the lessens learned:
- Video quality: A camera, high up at the back of the room produces reasonable, compressible video without having to have someone pan around following the presenter.
- But the built-in microphones on a cheap camera just aren't effective at that range (especially when you've got a quiet speaker).
- Audience questions are hard to record.
- Audio editing is do-able, and necessary. But so far, we haven't ventured into video editing (on linux, this isn't trivial).
- You can't normally read all the slides (or demos) with SD video. At full PAL resolution, most slides are legible. Screen-capture is an option, but most presenters make their slides available, which is far more bandwidth efficient.
Our progress so far is these procedures, and these videos: UK, ZA. We are using Ogg/Vorbis/Theora, and 3 different qualities of video. The three qualities are overkill, but I'm still experimenting with settings. I'd like some feedback - especially from a codec expert :-)