[mythtv-users] Background noise troubles

Yeasah Pell yeasah at schwide.com
Thu Sep 7 13:13:26 UTC 2006

outlier314 at cox.net wrote:
> I have been using MythTV a little bit for several weeks, but I have been struggling with this one problem since I began using it.  Anytime I watch TV (or any recordings) there is a ringing noise in the background.  At first I thought it was some kind interference, but both kdetv and TVtime sound just fine.  I tried fiddling with the mixer according to the howto instructions to no avail.  I also listened to the /dev/dsp output using aplay according to the howto and it sounded fine too.  This seems significant as it tells me that the sound stream is getting digitized without any problems (or am I way off track?).  Any help would be much appreciated!
> Hardware notes-
> Tuner card: Leadtek Winfast TV2000 XP RM
> Audio: Integrated AC'97 on an MSI Nforce4 motherboard
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I'm not at all sure it's the same kind of issue, but I had a problem 
with ringing audio on my asus nforce motherboard, which turned out to be 
a problem with the sound driver; passing some module parameters on 
startup fixed it for me. In my case, it was caused by the snd-hda-intel 
HD audio codec driver -- more info about that particular problem here: 

If you have an audio codec which uses the intel hd audio spec, this 
could be the issue, and you might want to try playing with the 'model' 
module parameter.

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