[mythtv-users] Sound question.

[Joseph A. Caputo]

On Tuesday 25 November 2003 13:19, Harlan wrote:
> I just noticed something today.
>
> I was not recording any programs, so there is no reason why the
> backend should be playing sound; the backend always plays sound for
> me when it is recording a show - I don't know if this is normal, but
> always happens.
>
> I found the backend running, the frontend too, with sound coming out
> of the speakers for no apparent reason.
>
> Anyone else seen this behaviour?
>
> Any ideas?

This is a symptom of your mixer settings not being correct.  Your 
line-in needs to be muted, set to 'capture' with the capture volume 
turned up.  Sometimes the capture volume is a separate slider; 
sometimes it just uses the volume of the line-in.  Different mixer 
programs and different soundcards behave differently.  Run 'aplay 
<device>' (where <device> is your audio capture device, like /dev/dsp) 
and play with the settings until you hear a single audio stream.  
Double check by trying LiveTV.  You should hear a single audio stream 
in sync with the video.  If the audio is ahead of the video, you've got 
it wrong.

-JAC