[mythtv-users] remote frontend audio problem
daryl at weblane.com
Sat Dec 3 16:20:10 EST 2005
hello everyone. i am replying to myself because somehow i managed to
miss Mike's reply form yesterday, which
i have only just run across while googling for further information on
this topic. Mike, thanks for your reply.
i have been reading up on the asoundrc file, yet i am still not sure
what the format is used by the backend
recording that i need to have alsa on the remote frontend convert to.
how do i find this out? i am thinking
what i need to do is set the buffer_time value and maybe other
attributes in the asoundrc file, does this sound right?
thanks and best regards,
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
> 2005-12-02 09:50:45.866 Unable to set ALSA parameters
> if i set the audio output device to /dev/dsp and the mixer device to
> /dev/mixer, and try to watch tv, i get no sound
> but the speakers on the tv will click once and mythfrontend reports
> the following:
> 2005-12-02 09:54:36.285 Using protocol version 15
> 2005-12-02 09:54:37.141 Killing AudioOutputDSP
> 2005-12-02 09:54:37.143 Opening audio device '/dev/dsp'.
> 2005-12-02 09:54:37.144 Opening OSS audio device '/dev/dsp'.
> 2005-12-02 09:54:37.162 Audio fragment size: 4096
> 2005-12-02 09:54:37.164 Audio Stretch Factor: 1
> 2005-12-02 09:54:37.165 Ending reconfigure
> 2005-12-02 09:54:37.166 kickoffOutputAudioLoop: pid = 5496
> 2005-12-02 09:54:37.167 OutputAudioLoop: Play Event
> 2005-12-02 09:54:37.167 Broadcasting free space avail
> 2005-12-02 09:54:37.213 Using XV port 122
> 2005-12-02 09:54:37.216 Broadcasting free space avail
> 2005-12-02 09:54:37.224 Broadcasting free space avail
> and then keeps repeating the "free space avail" message over and over
> i am running my own build of the 0.18.1 tarball on debian sarge using
> a 18.104.22.168 kernel i also built myself.
> the sound drivers are compiled in as modules rather than into the
> kernel, as i read somewhere that might
> makes a difference. i have alsa oss emulation tuned on but not oss
> itself. an lsmod shows the following:
> Module Size Used by
> nvidia 3706952 12
> snd_au8830 61088 1
> snd_ac97_codec 75392 1 snd_au8830
> snd_pcm_oss 59808 0
> snd_mixer_oss 19968 1 snd_pcm_oss
> snd_pcm 95240 3 snd_au8830,snd_ac97_codec,snd_pcm_oss
> snd_timer 24068 1 snd_pcm
> snd_page_alloc 8324 1 snd_pcm
> snd_mpu401_uart 7040 1 snd_au8830
> snd_rawmidi 22176 1 snd_mpu401_uart
> snd_seq_device 7564 1 snd_rawmidi
> snd 56964 11
> i have read as much documentation (both mythtv and alsa) as i can
> find, and have been troubleshooting
> this for days now. any help from the group would be very much
> appreciated. i am new to the group
> but have been playing with mythtv for a few months now. i also want to
> express my appreciation for
> mythtv to everyone that contributes to it. it is simply a wonderful
> suite of programs.
> thanks and best regards,
> mythtv-users mailing list
> mythtv-users at mythtv.org
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