$ arecord -f S16_LE | aplay -f S16_LE
Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 8000 Hz, Mono
ALSA lib pcm_bluetooth.c:1571:(audioservice_expect) BT_START_STREAM failed : Success(0)
ALSA lib pcm_bluetooth.c:1530:(audioservice_recv) Too short (1 bytes) IPC packet from bluetoothd
arecord: set_params:979: 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
aplay: playback:2019: read error