[mythtv-users] Whine on some channels - ATI TW Wonder VE w/VIA8233 Sound

Christopher Maahs cmaahs at eatenbygrue.com
Mon Nov 10 07:14:20 EST 2003


On Sun, 9 Nov 2003, William H. Gilmore wrote:

{stuff clipped}
> 
> My biggest problem since starting with MythTV has been sound.  I have gotten
> output from /dev/dsp by muting the Line In in the alsa mixer; however, about
> 2/3rds of the channels have a high pitch whine.  There doesn't appear to 
> be rhyme or reason.  Channels 2 & 4 don,t.  Channels 6, 7 and 9 do.  The UHF
> channels are mixed in whether the whine appears or not.  The whine doesn't 
> seem to be associated with signal strength/picture clarity.
> 
> If I play the same channels through xawtv using the Line In for audio, 
> everything works with no whine.

I also experienced the same problem with a built in sound card.  The truth 
is that all sound cards are not created equal, and in the end, those on 
board are usually much less equal.  I solved my issues by purchasing a 
cheap SB PCI card for $30.

~cj



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