Daryl Williams wrote:
folks, i am having a difficult time getting the audio to work on my
remote (diskless) frontend.
i believe i have alsa working correctly, as alsaplayer will play just
fine. if i set the audio output
device to "ALSA:default" and the mixer device to "default" i get the
message: "Unable to set ALSA parameters"
on the screen and mythfrontend reports:
2005-12-02 09:50:45.098 Using protocol version 15
2005-12-02 09:50:45.845 Killing AudioOutputDSP
2005-12-02 09:50:45.847 Opening audio device 'default'.
2005-12-02 09:50:45.865 in SetParameters(format=2, channels=2,
rate=32000, buffer_time=500000, period_time=125000)
2005-12-02 09:50:45.866 Unable to set buffer time 500000 for playback:
Invalid argument
Your sound card doesn't support the sound format used by the recording.
Therefore, you have to have ALSA convert it. New versions of ALSA
(1.0.9+) should take care of this automatically for you, but you can
always (even with new versions of ALSA) specify how to do it to give you
complete control.
While you could just plug the appropriate (and very ugly) string into
Myth, that wouldn't help anything else, so it makes sense to re-define
"default" (the ALSA device you're using) to work properly (i.e. with
reasonable defaults) so /all/ your programs can play audio (including
xine, MPlayer, ...). You do this by editing the ~/.asoundrc or
/etc/asound.conf. For more info (and a ~/.asoundrc that will work well
with few or no changes), see
http://mythtv.info/moin.cgi/DigitalSoundHowTo#head-b318f22131b4a59eef5f28edfac9160204e13719
(even if you're not using digital output).
Mike
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