[mythtv-users] Understanding audio rates

[Michael T. Dean]

On 11/15/2006 10:21 PM, Michael Lynch wrote:
> To give an overview, I have 2 capture cards - Hauppauge WinTV Go
> (bttv) and a Compro VideoMate TV Gold Plus (saa7134).  When the
> recording profiles are set to 32kHz audio sample rates, the saa7134
> card works perfectly but the bttv card has a horrible hum in the
> audio.  When the recording profiles are set to 48kHz audio sample
> rates, the bttv card works perfectly but the saa7134 card sounds like
> chipmunks.
>
> I appreciate Mike's suggestion that I need a properly configured
> /etc/asound.conf but I am not sure that it pertains to my situation.
> I am not using any digital audio or passthrough.  The backend in the
> garage does the recording and the frontend in the house does the
> playback.  If I play the files locally on my Windows laptop (using
> VLC), the audio is still skewed as above, so that leads me to believe
> that it's not actually the playback that is wrong, but my captures.
>   
If it's the captures, an ALSA configuration won't help.  It it's 
playback, it will.  So, since audio is bad in the recording, there's no 
need to worry about the ~/.asoundrc.

Mike