> 1) how do i capture/record from /dev/video24 (raw audio device), in wav 
> format?
> i've tried arecord but get a silent *.wav file.

If the card is tuned audio should come out /dev/video24 when it's
opened. First make sure you're getting audio by playing it with "aplay
-f dat < /dev/video24", then if it's working, you can use mplayer or
sox or something to reincode it to wav.

> 2) has anyone succeeded in capturing raw video ( /dev/video32 ), using 
> transcode, for instance?
> Or, using any other app, for that matter?

Please look at the list archives, this was just discussed recently.
How to use mplayer / mencoder with /dev/video24 is discussed there
also, as that's how you get audio when capturing video from
/dev/video32.

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