2009/12/10 pl bossart <bossart.nospam@xxxxxxxxx> > > > > I: module-alsa-sink.c: Using 2 fragments of size 4096 bytes, buffer time > is > > 46.44ms > > D: alsa-util.c: buffer_size : 2048 > > D: alsa-util.c: period_size : 1024 > > With small buffers like this, I don't see the point of the timer-based > scheduling, you will have one interrupt every 23ms. > > Do you mean that this is a limitation of pulseaudio server timer-based scheduling ? It seem the problem is not related to small buffer since It work quite well with 2 fragments (8196 bytes) on pulseaudio-0.9.14 D: alsa-util.c: Hardware PCM card 0 'Aureal Vortex au8830' device 0 subdevice 0 D: alsa-util.c: Its setup is: D: alsa-util.c: stream : PLAYBACK D: alsa-util.c: access : MMAP_INTERLEAVED D: alsa-util.c: format : S16_LE D: alsa-util.c: subformat : STD D: alsa-util.c: channels : 2 D: alsa-util.c: rate : 44100 D: alsa-util.c: exact rate : 44100 (44100/1) D: alsa-util.c: msbits : 16 D: alsa-util.c: buffer_size : 2048 D: alsa-util.c: period_size : 1024 D: alsa-util.c: period_time : 23219 D: alsa-util.c: tstamp_mode : NONE D: alsa-util.c: period_step : 1 D: alsa-util.c: avail_min : 4661 D: alsa-util.c: period_event : 0 D: alsa-util.c: start_threshold : -1 D: alsa-util.c: stop_threshold : -1 D: alsa-util.c: silence_threshold: 0 D: alsa-util.c: silence_size : 0 D: alsa-util.c: boundary : 1073741824 D: alsa-util.c: appl_ptr : 0 D: alsa-util.c: hw_ptr : 0 but fail on 16 fragments ( 65536 bytes) on pulseaudio-0.9.19 D: alsa-util.c: Hardware PCM card 1 'Aureal Vortex au8830' device 0 subdevice 0 D: alsa-util.c: Its setup is: D: alsa-util.c: stream : PLAYBACK D: alsa-util.c: access : MMAP_INTERLEAVED D: alsa-util.c: format : S16_LE D: alsa-util.c: subformat : STD D: alsa-util.c: channels : 2 D: alsa-util.c: rate : 44100 D: alsa-util.c: exact rate : 44100 (44100/1) D: alsa-util.c: msbits : 16 D: alsa-util.c: buffer_size : 16384 D: alsa-util.c: period_size : 1024 D: alsa-util.c: period_time : 23219 D: alsa-util.c: tstamp_mode : ENABLE D: alsa-util.c: period_step : 1 D: alsa-util.c: avail_min : 15502 D: alsa-util.c: period_event : 0 D: alsa-util.c: start_threshold : -1 D: alsa-util.c: stop_threshold : 1073741824 D: alsa-util.c: silence_threshold: 0 D: alsa-util.c: silence_size : 0 D: alsa-util.c: boundary : 1073741824 D: alsa-util.c: appl_ptr : 0 D: alsa-util.c: hw_ptr : 0 May be PA server cannot calculate the correct sleeping time when the sound card use more than 2 periods ? _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
