$ bluealsa-cli list-pcms
/org/bluealsa/hci1/dev_XX_XX_XX_XX_XX_XX/a2dpsrc/sink

$ bluealsa-cli info -vv /org/bluealsa/hci1/dev_XX_XX_XX_XX_XX_XX/a2dpsrc/sink
...
Format: S32_LE
Channels: 2
Sampling: 96000 Hz
Available codecs:
        ...
	LDAC:... [channels: 1 2 2] [sampling: 44100 48000 88200 96000] # supported sample rates.
Selected codec:
	LDAC:... [channels: 2] [sampling: 96000]
...