[mythtv-users] Mythtv has audio quality problem when using RCA's

Andrew lists at heathsworld.com
Sun Mar 19 04:36:56 UTC 2006

I am surprised that nobody else has seen this.  I did figure out that when live TV starts with Svideo0 the sound is bad 
every time. If you hit C and change to Tuner the sound is ok.  Then if you hit C again and change back to Svideo0 the 
sound it fine.  Certainly a bug.

Andrew wrote:
> Previously I was using comcast and pulling A/V in through coax and 
> everything was fine. Now I have switched to directTV and use the S-Video 
> and audio cables going into my PVR-150's.  The audio is good going into 
> the card and I can mplayer /dev/v4l/video0 and all sounds great (this 
> tells me the 150 is working fine).  When I watch myth live TV or record 
> something in myth the audio just plain sucks.  It's like a bad VOIP 
> phone call from overseas.  What could mythtv be doing to the audio that 
> would do this?
> Gentoo system
> Audio out = ALSA:default
> Aggressive sound card buffering = off
> Use internal volume controls = off
> Extra audio buffering = off
> I can't find any other setting for audio.  Any ideas?

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