2010/2/4 Guennadi Liakhovetski <g.liakhovetski@xxxxxx> > On Wed, 3 Feb 2010, Raymond Yau wrote: > > > 2010/2/3 Guennadi Liakhovetski <g.liakhovetski@xxxxxx> > > > > > On Tue, 2 Feb 2010, Michael Trimarchi wrote: > > > > > > > I have tested it on the no-bluetooth interface. What is your testing > > > > application and the reporting error? > > > > > > Using aplayer / arecord, I posted a couple of logs in other threads, > see, > > > e.g., http://thread.gmane.org/gmane.linux.alsa.user/33861 and a log > with > > > some debugging http://pastebin.ca/1773284 > > > > > > Thanks > > > Guennadi > > > > > > > Try > > > > export LIBASOUND_DEBUG=1 > > arecord -v -Dplughw:0,0 -c 1 -f S16_LE -r 800 -d 30 any.wav > > No success either (with 8000Hz instead of 800): > > Recording WAVE '/tmp/any.wav' : Signed 16 bit Little Endian, Rate 8000 Hz, > Mono > CHOOSE called: > ACCESS: RW_INTERLEAVED > FORMAT: S16_LE > SUBFORMAT: STD > SAMPLE_BITS: 16 > FRAME_BITS: 16 > CHANNELS: 1 > RATE: 8000 > PERIOD_TIME: 125000 > PERIOD_SIZE: 1000 > PERIOD_BYTES: 2000 > PERIODS: 4 > BUFFER_TIME: 500000 > BUFFER_SIZE: 4000 > BUFFER_BYTES: 8000 > TICK_TIME: ALL > choose done > ACCESS: RW_INTERLEAVED > FORMAT: S16_LE > SUBFORMAT: STD > SAMPLE_BITS: 16 > FRAME_BITS: 16 > CHANNELS: 1 > RATE: 8000 > PERIOD_TIME: 125000 > PERIOD_SIZE: 1000 > PERIOD_BYTES: 2000 > PERIODS: 4 > BUFFER_TIME: 500000 > BUFFER_SIZE: 4000 > BUFFER_BYTES: 8000 > TICK_TIME: 0 > arecord: set_params:1053: Unable to install hw params: > ACCESS: RW_INTERLEAVED > FORMAT: S16_LE > SUBFORMAT: STD > SAMPLE_BITS: 16 > FRAME_BITS: 16 > CHANNELS: 1 > RATE: 8000 > PERIOD_TIME: 125000 > PERIOD_SIZE: 1000 > PERIOD_BYTES: 2000 > PERIODS: 4 > BUFFER_TIME: 500000 > BUFFER_SIZE: 4000 > BUFFER_BYTES: 8000 > TICK_TIME: 0 > > Thanks > Guennadi > --- > > if LIBASOUND_DEBUG = 1 cannot tell you which parameter fail in hw_params() , you will need to define RULES_DEBUG in alsa-kernel/core/pcm_native.c and compile driver with debug=verbose -#undef RULES_DEBUG +#define RULES DEBUG 1 you can find out how ALSA refine the hw parameters by examing the system log _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
