william@i7 ~ $ pasuspender -- aplay -v -fdat -d1 -Dhw --dump-hw-params /dev/zeroPlaying raw data '/dev/zero' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
HW Params of device "hw":
--------------------
ACCESS:  MMAP_INTERLEAVED RW_INTERLEAVED
FORMAT:  S16_LE S32_LE
SUBFORMAT:  STD
SAMPLE_BITS: [16 32]
FRAME_BITS: [32 192]
CHANNELS: [2 6]
RATE: [44100 192000]
PERIOD_TIME: (31 185760)
PERIOD_SIZE: [6 8192]
PERIOD_BYTES: [128 196608]
PERIODS: [2 32]
BUFFER_TIME: (62 371520)
BUFFER_SIZE: [12 16384]
BUFFER_BYTES: [128 65536]
TICK_TIME: ALL
--------------------
Hardware PCM card 0 'HDA Intel PCH' 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  : 16384
  period_size  : 4096
  period_time  : 85333
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 4096
  period_event : 0
  start_threshold  : 16384
  stop_threshold   : 16384
  silence_threshold: 0
  silence_size : 0
  boundary     : 4611686018427387904
  appl_ptr     : 0
  hw_ptr       : 0