[mythtv-users] DMA Sound with AverTV (saa7134 driver)

Michael T. Dean mtdean at thirdcontact.com
Sat Jul 22 18:03:27 UTC 2006


On 07/21/06 21:47, Steven Ihde wrote:

>I'm using an AverTV GO 007 with the saa7134 driver and kernel 2.6.17.  The 
>video seems to be working fine.  Sound is a problem though.  I have loaded 
>the saa7134-oss module, and do seem to be able to capture sound on /dev/dsp1.  
>However, every time I change channels, or stop watching TV and start again, 
>the sound goes away.
>
>To get the sound back (even to get it to work the first time), I have to use a 
>mixer like aumix to change the record capture away from "video" to something 
>else, then back to video.  Then the sound comes back.  The mixer control 
>gives three choices for capture source: Line 1, Line 2, and Video.
>
>I tried the "Don't touch audio volume" switch in the capture card 
>configuration, but it didn't seem to help.
>
>Has anyone experienced or fixed this problem?  Any advice?
>
Use v4lctl to set mute off at the start of every recording.  See the man 
page for v4lctl for how.  You can integrate this into a channel change 
script (but you'll have to actually change the channel with the script, 
too).

Mike


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