arecord -vv -fdat -Dplughw:2 foo.wav Recording WAVE 'foo.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo Plug PCM: Route conversion PCM (sformat=S16_LE) Transformation table: 0 <- 0 1 <- 0 Its setup is: stream : CAPTURE access : RW_INTERLEAVED

arecord -vv -fdat -c1 -Dhw:2 foo.wav Recording WAVE 'foo.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono Hardware PCM card 2 'C-Media USB Headphone Set ' device 0 subdevice 0 Its setup is: stream : CAPTURE access : RW_INTERLEAVED

https://bugzilla.novell.com/show_bug.cgi?id=198488 ------- Comment #9 from ensonic@sonicpulse.de 2006-09-30 11:17 MST ------- format : S16_LE subformat : STD channels : 2 rate : 48000 exact rate : 48000 (48000/1) msbits : 16 buffer_size : 24000 period_size : 6000 period_time : 125000 tick_time : 4000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 6000 xfer_align : 6000 start_threshold : 1 stop_threshold : 24000 silence_threshold: 0 silence_size : 0 boundary : 1572864000 Slave: Hardware PCM card 2 'C-Media USB Headphone Set ' device 0 subdevice 0 Its setup is: stream : CAPTURE access : MMAP_INTERLEAVED format : S16_LE subformat : STD channels : 1 rate : 48000 exact rate : 48000 (48000/1) msbits : 16 buffer_size : 24000 period_size : 6000 period_time : 125000 tick_time : 4000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 6000 xfer_align : 6000 start_threshold : 1 stop_threshold : 24000 silence_threshold: 0 silence_size : 0 boundary : 1572864000 Status(R/W): state : PREPARED trigger_time: 0.000000 tstamp : 1159636315.108127000 delay : 0 avail : 0 avail_max : 0 arecord: xrun:1082: read/write error, state = PREPARED ---------------------------------------------------------- format : S16_LE subformat : STD channels : 1 rate : 48000 exact rate : 48000 (48000/1) msbits : 16 buffer_size : 24000 period_size : 6000 period_time : 125000 tick_time : 4000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 6000 xfer_align : 6000 start_threshold : 1 stop_threshold : 24000 silence_threshold: 0 silence_size : 0 boundary : 1572864000 Status(R/W): state : PREPARED trigger_time: 0.000000 tstamp : 1159636499.58854000 delay : 0 avail : 0 avail_max : 0 arecord: xrun:1082: read/write error, state = PREPARED ----------------------------------------------------------

arecord -vv -f S16_LE -c1 -r44100 -Dhw:2 foo.wav .. arecord: xrun:1082: read/write error, state = PREPARED

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