[mythtv-users] MythTV Audio Distortion/Settings

[Remco Treffkorn]

On Sunday 19 November 2006 10:58, Aaron Jackson wrote:
> Hi, I'm new to MythTV so please bear with me. I finally got the video
> problems I was having worked out. Recording video/watching live tv now
> works great without audio. The problem is that now I have two different
> problems with my audio.
>
> I have a Hauppage WinTV-dbx 401 card. The card has an onboard audio
> capture device. When I set myth up to record /dev/dsp1 (the hauppage
> capture device) mythtv distorts the sound. The sound is perfectly in
> sync with the video but it sounds like it's over amplified when recorded
> and then the volume is reduced to normal levels (real grainy).
>
> The second problem is when I try to get input from the cable to the card.
> The onboard capture is mono sound and Iwould like my captures to be in
> stereo. For whatever reason I cannot get mythtv to capture the sound from
> the aux input. I have a Soundblaster Live Platinum 5.1. The card is
> connected internally to the Aux input on the soundblaster card. I can hear
> the TV if I unmute the playback channel in Alsamixer, but MythTV doesn't
> seem to be getting any audio from the capture input for the Aux part of
> the card. This could be some simple configuration issue that I'm
> overlooking. I've gone to alsamixer and pressed spacebar on the aux input
> on the capture page to set it to Captur, but still no luck.
>

I don't know this card, but your problem might be related to the 'tinny audio' 
problem with the pvr 150. There was a post on this list in the last 24 hours 
or so explaining how to fix this.

Your 'mono' problem sounds like the second problem currently with the pvr 150.
Try enabling "independent muting of left and right audio channels" in 
Setup/General in the FE. Then hit mute a couple of times till both channels 
come on.

-- 
Remco Treffkorn (RT445)
HAM DC2XT
remco at rvt.com   (831) 685-1201