Desperado.wav codec=uncompressed-integer Bitrate(kb/s)=512 ################################################################################# pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=441 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 : 440 period_size : 110 period_time : 2291 tstamp_mode : NONE period_step : 1 avail_min : 110 period_event : 0 start_threshold : 440 stop_threshold : 440 silence_threshold: 0 silence_size : 0 boundary : 1845493760 appl_ptr : 0 hw_ptr : 0 underrun!!! (at least 0.209 ms long) Status: state : XRUN trigger_time: 1541.448356112 tstamp : 1541.450422951 delay : 0 avail : 440 avail_max : 440 underrun!!! (at least 0.321 ms long) Status: state : XRUN trigger_time: 1548.427035876 tstamp : 1548.430236626 delay : 0 avail : 440 avail_max : 440 underrun!!! (at least 0.136 ms long) Status: state : XRUN trigger_time: 1550.978845372 tstamp : 1550.980195267 delay : 0 avail : 440 avail_max : 440 ^CAborted by signal Interrupt... Result:UNDERRUN * Desperado.wav codec=uncompressed-integer Bitrate(kb/s)=512 ################################################################################# pi@raspberrypi ~ $ aplay -v -D hw:0,0 --buffer-size=3091 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 : 3088 period_size : 772 period_time : 16083 tstamp_mode : NONE period_step : 1 avail_min : 772 period_event : 0 start_threshold : 3088 stop_threshold : 3088 silence_threshold: 0 silence_size : 0 boundary : 1619001344 appl_ptr : 0 hw_ptr : 0 ^CAborted by signal Interrupt... Result:OK