RFE: Bluetooth FastStream codec support for higher quality microphone/backchannel
Add Pipewire support for bi-directional bluetooth audio in A2DP mode, using "FastStream" codec, which allows for higher quality audio/microphone compared to HFP mode.
quote/info from another issue #972 (comment 856845) "Faststream appears to be a hack that combines a 48 kHz 212 kbps SBC audio stream with a 16 kHz 72kbps voice stream. Compare this to msBC which is 16 khZ 60.8 kbps bidirectional. Basically you are getting average quality audio with slightly higher than HFP quality voice."