aplay -v -D hw:0,0 --buffer-size=4096 Desperado.wav
for buffer size 4096, 2048, 1024, 512, 256, 128, 64,...

Kernel 3.12.29


Desperado.wav codec=uncompressed-integer Bitrate(kb/s)=512

#################################################################################
pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=4096 Desperado.wav
Playing WAVE 'Desperado.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
Hardware PCM card 0 'snd_rpi_hifiberry_amp' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 4096
  period_size  : 1024
  period_time  : 21333
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 1024
  period_event : 0
  start_threshold  : 4096
  stop_threshold   : 4096
  silence_threshold: 0
  silence_size : 0
  boundary     : 1073741824
  appl_ptr     : 0
  hw_ptr       : 0
^CAborted by signal Interrupt...


Result:OK


#################################################################################
pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=2048 Desperado.wav
Playing WAVE 'Desperado.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
Hardware PCM card 0 'snd_rpi_hifiberry_amp' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 2048
  period_size  : 512
  period_time  : 10666
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 512
  period_event : 0
  start_threshold  : 2048
  stop_threshold   : 2048
  silence_threshold: 0
  silence_size : 0
  boundary     : 1073741824
  appl_ptr     : 0
  hw_ptr       : 0
^CAborted by signal Interrupt...


Result:OK


#################################################################################
pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=1024 Desperado.wav
Playing WAVE 'Desperado.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
Hardware PCM card 0 'snd_rpi_hifiberry_amp' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 1024
  period_size  : 256
  period_time  : 5333
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 256
  period_event : 0
  start_threshold  : 1024
  stop_threshold   : 1024
  silence_threshold: 0
  silence_size : 0
  boundary     : 1073741824
  appl_ptr     : 0
  hw_ptr       : 0
^CAborted by signal Interrupt...

Result:OK


#################################################################################
pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=512 Desperado.wav
Playing WAVE 'Desperado.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
Hardware PCM card 0 'snd_rpi_hifiberry_amp' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 512
  period_size  : 128
  period_time  : 2666
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 128
  period_event : 0
  start_threshold  : 512
  stop_threshold   : 512
  silence_threshold: 0
  silence_size : 0
  boundary     : 1073741824
  appl_ptr     : 0
  hw_ptr       : 0
underrun!!! (at least 0.632 ms long)
Status:
  state       : XRUN
  trigger_time: 608.464053000
  tstamp      : 608.470349000
  delay       : 0
  avail       : 512
  avail_max   : 512
underrun!!! (at least 0.031 ms long)
Status:
  state       : XRUN
  trigger_time: 647.639884000
  tstamp      : 647.640182000
  delay       : 0
  avail       : 632
  avail_max   : 632
^CAborted by signal Interrupt...

Result:UNDERRUN *


#################################################################################
pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=256 Desperado.wav
Playing WAVE 'Desperado.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
Hardware PCM card 0 'snd_rpi_hifiberry_amp' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 256
  period_size  : 64
  period_time  : 1333
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 64
  period_event : 0
  start_threshold  : 256
  stop_threshold   : 256
  silence_threshold: 0
  silence_size : 0
  boundary     : 1073741824
  appl_ptr     : 0
  hw_ptr       : 0
underrun!!! (at least 0.523 ms long)
Status:
  state       : XRUN
  trigger_time: 703.615152000
  tstamp      : 703.620312000
  delay       : 0
  avail       : 312
  avail_max   : 312
underrun!!! (at least 0.293 ms long)
Status:
  state       : XRUN
  trigger_time: 703.657283000
  tstamp      : 703.660202000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.578 ms long)
Status:
  state       : XRUN
  trigger_time: 703.674451000
  tstamp      : 703.680210000
  delay       : 0
  avail       : 316
  avail_max   : 316
underrun!!! (at least 0.548 ms long)
Status:
  state       : XRUN
  trigger_time: 704.554777000
  tstamp      : 704.560250000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.015 ms long)
Status:
  state       : XRUN
  trigger_time: 705.96094000
  tstamp      : 705.96232000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.610 ms long)
Status:
  state       : XRUN
  trigger_time: 705.134167000
  tstamp      : 705.140256000
  delay       : 0
  avail       : 316
  avail_max   : 316
underrun!!! (at least 0.474 ms long)
Status:
  state       : XRUN
  trigger_time: 705.175763000
  tstamp      : 705.180490000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.319 ms long)
Status:
  state       : XRUN
  trigger_time: 705.197083000
  tstamp      : 705.200259000
  delay       : 0
  avail       : 316
  avail_max   : 316
underrun!!! (at least 0.217 ms long)
Status:
  state       : XRUN
  trigger_time: 708.909945000
  tstamp      : 708.912110000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.370 ms long)
Status:
  state       : XRUN
  trigger_time: 708.946492000
  tstamp      : 708.950180000
  delay       : 0
  avail       : 312
  avail_max   : 312
underrun!!! (at least 0.315 ms long)
Status:
  state       : XRUN
  trigger_time: 708.987045000
  tstamp      : 708.990181000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.064 ms long)
Status:
  state       : XRUN
  trigger_time: 709.149718000
  tstamp      : 709.150348000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.071 ms long)
Status:
  state       : XRUN
  trigger_time: 711.102105000
  tstamp      : 711.102804000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.248 ms long)
Status:
  state       : XRUN
  trigger_time: 711.117755000
  tstamp      : 711.120231000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.030 ms long)
Status:
  state       : XRUN
  trigger_time: 715.608096000
  tstamp      : 715.608391000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.560 ms long)
Status:
  state       : XRUN
  trigger_time: 715.624863000
  tstamp      : 715.630452000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.108 ms long)
Status:
  state       : XRUN
  trigger_time: 718.575709000
  tstamp      : 718.576781000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.601 ms long)
Status:
  state       : XRUN
  trigger_time: 718.594721000
  tstamp      : 718.600725000
  delay       : 0
  avail       : 316
  avail_max   : 316
underrun!!! (at least 0.034 ms long)
Status:
  state       : XRUN
  trigger_time: 718.609865000
  tstamp      : 718.610194000
  delay       : 0
  avail       : 316
  avail_max   : 316
underrun!!! (at least 0.057 ms long)
Status:
  state       : XRUN
  trigger_time: 718.649677000
  tstamp      : 718.650235000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.158 ms long)
Status:
  state       : XRUN
  trigger_time: 718.959417000
  tstamp      : 718.960994000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.073 ms long)
Status:
  state       : XRUN
  trigger_time: 719.442595000
  tstamp      : 719.443162000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.094 ms long)
Status:
  state       : XRUN
  trigger_time: 719.459316000
  tstamp      : 719.460245000
  delay       : 0
  avail       : 316
  avail_max   : 316
underrun!!! (at least 0.182 ms long)
Status:
  state       : XRUN
  trigger_time: 719.498401000
  tstamp      : 719.500217000
  delay       : 0
  avail       : 312
  avail_max   : 312
underrun!!! (at least 0.121 ms long)
Status:
  state       : XRUN
  trigger_time: 719.529045000
  tstamp      : 719.530243000
  delay       : 0
  avail       : 316
  avail_max   : 316
underrun!!! (at least 0.343 ms long)
Status:
  state       : XRUN
  trigger_time: 719.556443000
  tstamp      : 719.559861000
  delay       : 0
  avail       : 312
  avail_max   : 312
underrun!!! (at least 0.004 ms long)
Status:
  state       : XRUN
  trigger_time: 719.620282000
  tstamp      : 719.620312000
  delay       : 0
  avail       : 272
  avail_max   : 272
underrun!!! (at least 0.302 ms long)
Status:
  state       : XRUN
  trigger_time: 719.635751000
  tstamp      : 719.638769000
  delay       : 0
  avail       : 316
  avail_max   : 316
underrun!!! (at least 0.254 ms long)
Status:
  state       : XRUN
  trigger_time: 719.893118000
  tstamp      : 719.895646000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.121 ms long)
Status:
  state       : XRUN
  trigger_time: 720.38283000
  tstamp      : 720.39486000
  delay       : 0
  avail       : 256
  avail_max   : 256
underrun!!! (at least 0.585 ms long)
Status:
  state       : XRUN
  trigger_time: 720.55345000
  tstamp      : 720.61184000
  delay       : 0
  avail       : 256
  avail_max   : 256
^CAborted by signal Interrupt...

Result:UNDERRUN **


#################################################################################
pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=128 Desperado.wav
Playing WAVE 'Desperado.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
Hardware PCM card 0 'snd_rpi_hifiberry_amp' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 128
  period_size  : 32
  period_time  : 666
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 32
  period_event : 0
  start_threshold  : 128
  stop_threshold   : 128
  silence_threshold: 0
  silence_size : 0
  boundary     : 1073741824
  appl_ptr     : 0
  hw_ptr       : 0
underrun!!! (at least 0.599 ms long)
Status:
  state       : XRUN
  trigger_time: 774.904381000
  tstamp      : 774.910340000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.624 ms long)
Status:
  state       : XRUN
  trigger_time: 774.944006000
  tstamp      : 774.950234000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.241 ms long)
Status:
  state       : XRUN
  trigger_time: 774.957817000
  tstamp      : 774.960215000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.535 ms long)
Status:
  state       : XRUN
  trigger_time: 774.974892000
  tstamp      : 774.980236000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.219 ms long)
Status:
  state       : XRUN
  trigger_time: 775.667663000
  tstamp      : 775.669838000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.740 ms long)
Status:
  state       : XRUN
  trigger_time: 775.683707000
  tstamp      : 775.691095000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.519 ms long)
Status:
  state       : XRUN
  trigger_time: 775.715053000
  tstamp      : 775.720233000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.646 ms long)
Status:
  state       : XRUN
  trigger_time: 775.753782000
  tstamp      : 775.760237000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.301 ms long)
Status:
  state       : XRUN
  trigger_time: 775.767215000
  tstamp      : 775.770219000
  delay       : 0
  avail       : 152
  avail_max   : 152
underrun!!! (at least 0.541 ms long)
Status:
  state       : XRUN
  trigger_time: 775.784837000
  tstamp      : 775.790234000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.267 ms long)
Status:
  state       : XRUN
  trigger_time: 776.757103000
  tstamp      : 776.759765000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.418 ms long)
Status:
  state       : XRUN
  trigger_time: 776.773609000
  tstamp      : 776.777785000
  delay       : 0
  avail       : 157
  avail_max   : 157
underrun!!! (at least 0.075 ms long)
Status:
  state       : XRUN
  trigger_time: 776.789028000
  tstamp      : 776.789766000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.019 ms long)
Status:
  state       : XRUN
  trigger_time: 776.802898000
  tstamp      : 776.803077000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.009 ms long)
Status:
  state       : XRUN
  trigger_time: 776.837182000
  tstamp      : 776.837265000
  delay       : 0
  avail       : 131
  avail_max   : 131
underrun!!! (at least 0.064 ms long)
Status:
  state       : XRUN
  trigger_time: 776.849549000
  tstamp      : 776.850183000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.143 ms long)
Status:
  state       : XRUN
  trigger_time: 776.916697000
  tstamp      : 776.918114000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.008 ms long)
Status:
  state       : XRUN
  trigger_time: 776.930317000
  tstamp      : 776.930384000
  delay       : 0
  avail       : 140
  avail_max   : 140
underrun!!! (at least 0.005 ms long)
Status:
  state       : XRUN
  trigger_time: 776.963059000
  tstamp      : 776.963099000
  delay       : 0
  avail       : 144
  avail_max   : 144
underrun!!! (at least 0.236 ms long)
Status:
  state       : XRUN
  trigger_time: 776.997848000
  tstamp      : 777.198000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.508 ms long)
Status:
  state       : XRUN
  trigger_time: 777.25116000
  tstamp      : 777.30191000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.140 ms long)
Status:
  state       : XRUN
  trigger_time: 777.169891000
  tstamp      : 777.171286000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.554 ms long)
Status:
  state       : XRUN
  trigger_time: 777.185381000
  tstamp      : 777.190751000
  delay       : 0
  avail       : 152
  avail_max   : 152
underrun!!! (at least 0.241 ms long)
Status:
  state       : XRUN
  trigger_time: 777.207766000
  tstamp      : 777.210167000
  delay       : 0
  avail       : 152
  avail_max   : 152
underrun!!! (at least 0.593 ms long)
Status:
  state       : XRUN
  trigger_time: 777.244311000
  tstamp      : 777.250226000
  delay       : 0
  avail       : 152
  avail_max   : 152
underrun!!! (at least 0.240 ms long)
Status:
  state       : XRUN
  trigger_time: 777.257766000
  tstamp      : 777.260159000
  delay       : 0
  avail       : 152
  avail_max   : 152
underrun!!! (at least 0.056 ms long)
Status:
  state       : XRUN
  trigger_time: 777.319615000
  tstamp      : 777.320171000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.038 ms long)
Status:
  state       : XRUN
  trigger_time: 777.620413000
  tstamp      : 777.620786000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.583 ms long)
Status:
  state       : XRUN
  trigger_time: 777.634432000
  tstamp      : 777.640251000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.338 ms long)
Status:
  state       : XRUN
  trigger_time: 777.666867000
  tstamp      : 777.670233000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.587 ms long)
Status:
  state       : XRUN
  trigger_time: 777.704388000
  tstamp      : 777.710248000
  delay       : 0
  avail       : 152
  avail_max   : 152
underrun!!! (at least 0.114 ms long)
Status:
  state       : XRUN
  trigger_time: 777.719070000
  tstamp      : 777.720204000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.514 ms long)
Status:
  state       : XRUN
  trigger_time: 777.735109000
  tstamp      : 777.740237000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.384 ms long)
Status:
  state       : XRUN
  trigger_time: 778.243079000
  tstamp      : 778.246913000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.013 ms long)
Status:
  state       : XRUN
  trigger_time: 778.272128000
  tstamp      : 778.272248000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.710 ms long)
Status:
  state       : XRUN
  trigger_time: 778.293161000
  tstamp      : 778.300255000
  delay       : 0
  avail       : 156
  avail_max   : 156
underrun!!! (at least 0.584 ms long)
Status:
  state       : XRUN
  trigger_time: 778.334413000
  tstamp      : 778.340247000
  delay       : 0
  avail       : 128
  avail_max   : 128
underrun!!! (at least 0.077 ms long)
Status:
  state       : XRUN
  trigger_time: 778.349439000
  tstamp      : 778.350199000
  delay       : 0
  avail       : 152
  avail_max   : 152
underrun!!! (at least 0.456 ms long)
Status:
  state       : XRUN
  trigger_time: 778.365700000
  tstamp      : 778.370246000
  delay       : 0
  avail       : 152
  avail_max   : 152
^CAborted by signal Interrupt...

Result:UNDERRUN ***


#################################################################################
pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=64 Desperado.wav
Playing WAVE 'Desperado.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
Hardware PCM card 0 'snd_rpi_hifiberry_amp' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 64
  period_size  : 16
  period_time  : 333
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 16
  period_event : 0
  start_threshold  : 64
  stop_threshold   : 64
  silence_threshold: 0
  silence_size : 0
  boundary     : 1073741824
  appl_ptr     : 0
  hw_ptr       : 0
underrun!!! (at least 0.166 ms long)
Status:
  state       : XRUN
  trigger_time: 838.600428000
  tstamp      : 838.601859000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.374 ms long)
Status:
  state       : XRUN
  trigger_time: 838.626450000
  tstamp      : 838.630178000
  delay       : 0
  avail       : 72
  avail_max   : 72
underrun!!! (at least 0.706 ms long)
Status:
  state       : XRUN
  trigger_time: 838.663116000
  tstamp      : 838.670164000
  delay       : 0
  avail       : 72
  avail_max   : 72
underrun!!! (at least 0.135 ms long)
Status:
  state       : XRUN
  trigger_time: 838.748099000
  tstamp      : 838.749441000
  delay       : 0
  avail       : 72
  avail_max   : 72
underrun!!! (at least 0.612 ms long)
Status:
  state       : XRUN
  trigger_time: 838.762374000
  tstamp      : 838.768481000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.512 ms long)
Status:
  state       : XRUN
  trigger_time: 838.825084000
  tstamp      : 838.830194000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.035 ms long)
Status:
  state       : XRUN
  trigger_time: 839.181842000
  tstamp      : 839.182056000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.371 ms long)
Status:
  state       : XRUN
  trigger_time: 839.196501000
  tstamp      : 839.200198000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.107 ms long)
Status:
  state       : XRUN
  trigger_time: 839.206911000
  tstamp      : 839.207970000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.438 ms long)
Status:
  state       : XRUN
  trigger_time: 839.235800000
  tstamp      : 839.240174000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.714 ms long)
Status:
  state       : XRUN
  trigger_time: 839.273066000
  tstamp      : 839.280192000
  delay       : 0
  avail       : 72
  avail_max   : 72
underrun!!! (at least 0.546 ms long)
Status:
  state       : XRUN
  trigger_time: 839.294740000
  tstamp      : 839.300194000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.999 ms long)
Status:
  state       : XRUN
  trigger_time: 839.550217000
  tstamp      : 839.560197000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.106 ms long)
Status:
  state       : XRUN
  trigger_time: 839.570906000
  tstamp      : 839.571960000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.020 ms long)
Status:
  state       : XRUN
  trigger_time: 839.600386000
  tstamp      : 839.600581000
  delay       : 0
  avail       : 80
  avail_max   : 80
underrun!!! (at least 0.119 ms long)
Status:
  state       : XRUN
  trigger_time: 839.616066000
  tstamp      : 839.617252000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.372 ms long)
Status:
  state       : XRUN
  trigger_time: 839.636440000
  tstamp      : 839.640149000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.714 ms long)
Status:
  state       : XRUN
  trigger_time: 839.673054000
  tstamp      : 839.680185000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.559 ms long)
Status:
  state       : XRUN
  trigger_time: 839.889798000
  tstamp      : 839.895378000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.106 ms long)
Status:
  state       : XRUN
  trigger_time: 839.926007000
  tstamp      : 839.927062000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.398 ms long)
Status:
  state       : XRUN
  trigger_time: 839.936205000
  tstamp      : 839.940175000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.714 ms long)
Status:
  state       : XRUN
  trigger_time: 839.973059000
  tstamp      : 839.980192000
  delay       : 0
  avail       : 72
  avail_max   : 72
underrun!!! (at least 0.442 ms long)
Status:
  state       : XRUN
  trigger_time: 839.995766000
  tstamp      : 840.182000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.320 ms long)
Status:
  state       : XRUN
  trigger_time: 840.248925000
  tstamp      : 840.252109000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.561 ms long)
Status:
  state       : XRUN
  trigger_time: 840.264637000
  tstamp      : 840.270239000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.018 ms long)
Status:
  state       : XRUN
  trigger_time: 840.290047000
  tstamp      : 840.290217000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.460 ms long)
Status:
  state       : XRUN
  trigger_time: 840.314868000
  tstamp      : 840.319464000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.913 ms long)
Status:
  state       : XRUN
  trigger_time: 840.351068000
  tstamp      : 840.360187000
  delay       : 0
  avail       : 68
  avail_max   : 68
underrun!!! (at least 0.535 ms long)
Status:
  state       : XRUN
  trigger_time: 840.364855000
  tstamp      : 840.370193000
  delay       : 0
  avail       : 72
  avail_max   : 72
underrun!!! (at least 0.770 ms long)
Status:
  state       : XRUN
  trigger_time: 840.382505000
  tstamp      : 840.390195000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.040 ms long)
Status:
  state       : XRUN
  trigger_time: 841.181753000
  tstamp      : 841.182110000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.433 ms long)
Status:
  state       : XRUN
  trigger_time: 841.195911000
  tstamp      : 841.200231000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.107 ms long)
Status:
  state       : XRUN
  trigger_time: 841.207216000
  tstamp      : 841.208281000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.431 ms long)
Status:
  state       : XRUN
  trigger_time: 841.235875000
  tstamp      : 841.240174000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.715 ms long)
Status:
  state       : XRUN
  trigger_time: 841.273042000
  tstamp      : 841.280185000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.059 ms long)
Status:
  state       : XRUN
  trigger_time: 841.423730000
  tstamp      : 841.424307000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.262 ms long)
Status:
  state       : XRUN
  trigger_time: 841.437569000
  tstamp      : 841.440181000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.122 ms long)
Status:
  state       : XRUN
  trigger_time: 841.451065000
  tstamp      : 841.452283000
  delay       : 0
  avail       : 72
  avail_max   : 72
underrun!!! (at least 0.840 ms long)
Status:
  state       : XRUN
  trigger_time: 841.461772000
  tstamp      : 841.470158000
  delay       : 0
  avail       : 72
  avail_max   : 72
underrun!!! (at least 0.723 ms long)
Status:
  state       : XRUN
  trigger_time: 841.502974000
  tstamp      : 841.510196000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.915 ms long)
Status:
  state       : XRUN
  trigger_time: 841.521016000
  tstamp      : 841.530152000
  delay       : 0
  avail       : 76
  avail_max   : 76
underrun!!! (at least 0.333 ms long)
Status:
  state       : XRUN
  trigger_time: 841.749516000
  tstamp      : 841.752840000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.554 ms long)
Status:
  state       : XRUN
  trigger_time: 841.764705000
  tstamp      : 841.770236000
  delay       : 0
  avail       : 64
  avail_max   : 64
underrun!!! (at least 0.123 ms long)
Status:
  state       : XRUN
  trigger_time: 841.774200000
  tstamp      : 841.775418000
  delay       : 0
  avail       : 76
  avail_max   : 76
^CAborted by signal Interrupt...

Result:UNDERRUN ****


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