[mythtv-users] audio problems
chicomakani at yahoo.com
Tue Jun 27 22:46:16 UTC 2006
Thanks. The problem is that if I disable 'Use Internal Volume Controls' I still can't control the mixer. If I use dev/dsp, changing the mixer levels has no effect. If I use ALSA, I get no sound at all.
"Michael T. Dean" <mtdean at thirdcontact.com> wrote: On 06/27/2006 03:36 PM, Chico Makani wrote:
> I'm running Myth 0.19 on Ubuntu Dapper. I have OSS and ALSA drivers
I hope you mean you have ALSA drivers installed and have also loaded the
ALSA OSS emulation modules...
> mplayer works with either driver. I have an Nvidia4 chipset and
> RealTek audio chip.
> If I run myth with the OSS driver device: /dev/dsp mixer: /dev/mixer
> I get audio but can't change the volume. If I open the mixer I can see
> that there's a PCM-2 conrol that Myth is automatically setting to 100%.
Myth can only control Master or PCM controls on the mixer. If your card
uses a different name, Myth can't control volume for you.
> So I tried the ALSA driver. device: ALSA:default, mixer: default
> in this case I get no audio at all. From the log files it appears that
> Myth is looking for a Master control on the mixer that does not exist.
> Here's the message:
> 2006-06-26 14:20:20.137 mixer unable to find control Master
In frontend settings, under General settings on page Audio:
Changing the volume adjusts the selected mixer.
If you need to control something besides PCM or Mixer, you'll have to
disable Myth's internal volume control:
Use internal volume controls
MythTV can control the PCM and master mixer volume. If you prefer to
use an external mixer program, then disable this option.
and use a script like
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