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Old 12-29-2007, 10:15 PM   #1
rimtrim
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Radeon 7200 + avview + alsa -- No sound from video in


I have a Gentoo system with an old Radeon 7200 All-In-Wonder video capture card. I'm trying to digitize some old home videos from VHS tapes. I have installed avview and connected a VCR to the Radeon card using the cable that came with the card (RCA video inputs to one proprietary-looking output). When I run avview, video shows fine but there is no sound. avview sees my sound card (Sound Blaster Live Value). I went into alsamixer, unmuted everything and turned everything up to 100, but that did not correct the problem. Other sound on the system works fine, just not sound coming through the Radeon.

I do not have any kind of physical cable connecting the Radeon to my sound card. I've seen some vague mentions of such a thing on the net, but my Radeon manual doesn't say anything about this, and there is no audio jack on the back of the Radeon card. Do I need some kind of cable to make this work, or is there a software solution?

-Andrew L
 
Old 12-30-2007, 04:15 PM   #2
fuzzyworm
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Does the plug look like a PS/2 plug? (circular, about 1cm diameter - like on older non-USB mice)
If so, it's probably S-Video, which means that it only carries a video signal. You will need a separate cable to carry the audio signal - visit your local audio/video shop, they'll know what you need.

Edit:
Ok, does it have red/yellow/white inputs? If so, forget that, it's probably not S-Video if it has an audio connector - see my next post

Last edited by fuzzyworm; 12-30-2007 at 04:20 PM.
 
Old 12-30-2007, 04:17 PM   #3
fuzzyworm
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The other option is to check to see whether you have the ATI card listed as a sound card:
If you have alsa-utils (and you're using alsa)
Code:
asoundconf list
Edit:
Have you had it working before? Under Windows or another O/S?

Last edited by fuzzyworm; 12-30-2007 at 04:19 PM.
 
Old 12-30-2007, 05:48 PM   #4
rimtrim
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Gentoo doesn't seem to use asoundconf, but I ran alsaconf and it only detects my SB Live sound card; it does not see the Radeon as a sound card. If it's supposed to, I'm not sure what I need to do to fix that.

I switched this machine from Win2K to Gentoo back in 2003, so it's been awhile, but as I recall, I was not able to get video sound working under Windows either.

As for the cables, I will try to describe what I have, starting at the VCR:

VCR has 2 RCA outputs, video (yellow) and audio (white). I have a 3-in-1 generic RCA cable (white, yellow, red). On the VCR side, I have connected the yellow and white plugs in the obvious way, and left the red plug dangling because there is nowhere to put it on the VCR. The other ends of the RCA cables plug into the box on one end of the Radeon cable. That box has 3 RCA inputs (white, yellow, red) and an S-VHS input. I have connected the white and yellow plugs on my RCA cable to it. The red RCA and S-VHS inputs are unused. Finally, the other end of that cable appears to be a proprietary plug. It looks similar to S-VHS but it's not. That plugs into the VIDEO IN on the back of the Radeon card.

I've found some posts via Google that suggest that the Radeon should have some kind of generic audio port, which would let me connect it to the LINE IN on my sound card, but my Radeon doesn't seem to have that.

Thanks,

-Andrew L
 
Old 12-31-2007, 05:29 AM   #5
fuzzyworm
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I couldn't find your specific card, but if you have a look at this picture:
http://www.kohryu.com/picture/ati/aiw800xt.jpg
In the top-left corner is a digital line-out, which should go to a digital input on the sound card. I would imagine that they all work in a similar way.
 
  


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