[mythtv] LiveTV Shuttering & Squeaky Audio

Paul McEnery pmcenery at gmail.com
Fri Feb 2 09:25:09 UTC 2007

> > I ran this message for the last couple of days on the mythtv-users
> > list, but think it goes a little beyond the scope of normal usage and troubleshooting.
> >
> > I am running mythtv-trunk r12637 (not particularly relevant) with a DVB-C
> > card (TT C2300).
> > I am able to successfully lock onto all channels found during a scan, and 95% of
> > the channels play back correctly (livetv & recordings). About a dozen channels
> > (out of about 150) are shuttering and the audio is squeaky.
> [...]


The solution was to configure mythtv as follows:

Mythfrontend -> Setup -> Setup -> General -> Audio:

Audio output device: ALSA:default
Passthrough Device:  Default
Mixer device:        default
Mixer controls:      Master

Admittedly, this is what the HOWTO says it should be for Alsa (Twat!).
The reason that I
thought that it was not worth trying is that 95% of LiveTV, video,
DVD, music, etc worked
perfectly with /dev/dsp. All that I can imagine is that there are
differences in the way OSS
emulation was working with ffmpeg on my particular hardware.

Hopefully this thread helps some other hapless soul in the future!

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