# first terminal with the first audio stream
------------------------------------------------------------------------

$ speaker-test -c2

speaker-test 1.0.16

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 6144 to 6144
Period size range from 512 to 2048
Using max buffer size 6144
Periods = 4
was set period_size = 2048
was set buffer_size = 6144
 0 - Front Left
 1 - Front Right
Time per period = 5.865569
 0 - Front Left
 1 - Front Right
Time per period = 5.999629
 0 - Front Left
 1 - Front Right
^C

# second terminal with the second audio stream, that fails
------------------------------------------------------------------------

$ speaker-test -c2

speaker-test 1.0.16

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 6144 to 6144
Period size range from 512 to 2048
Using max buffer size 6144
Periods = 4
was set period_size = 2048
was set buffer_size = 6144
ALSA lib pcm_bluetooth.c:712:(bluetooth_a2dp_hw_params) BT_SETCONFIGURATION failed : Input/output error(5)
Unable to set hw params for playback: Input/output error
Setting of hwparams failed: Input/output error