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Old 10-01-2006, 04:02 AM   #1
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Registered: Mar 2004
Location: Australia
Distribution: Home brew
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saa7134 frame grabber, no sound

Hi, I have just purchased a videomate framegrabber and got the TV part working, but cant get any sound out of the card.

I have the details on my blog.

I can pipe the sound from 1 card to another with this command.
arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE | aplay -

but this adds a 0.5sec delay thats really annoying and even with smaller buffers its better but noticeable,

EDIT, just upgraded to kernel 2.6.18, same problem.

Last edited by ideasman; 10-01-2006 at 05:53 AM.
Old 10-01-2006, 12:28 PM   #2
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Registered: Mar 2004
Location: Australia
Distribution: Home brew
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Okay, I still cant get sound but I can record TV nicely since the cards TV capture works.
so I can record and play back... at the same time to watch TV
At least it can be paused

export TIME=$(date +%Y-%m-%d-%H-%M)

mencoder tv:// -tv \
 driver=v4l:width=384:height=288:input=2:norm=PAL:chanlist=australia:channels=2-ABC,7-SAS7,9-NINE,10-TEN:forceaudio:amode=0:audiorate=32000:adevice=/dev/dsp1 \
 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1000:vhq -noautoexpand \
 -oac mp3lame -lameopts vbr=2:br=16:mode=3 \
 -endpos 24:00:00 \
 -o /storage/TV-$TIME.avi

Last edited by ideasman; 10-01-2006 at 10:02 PM.


capture, frame, grab, saa7134, sound

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