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arkq / bluez-alsa

Bluetooth Audio ALSA Backend
MIT License
864 stars 189 forks source link

Fix adjust volume invalid in using soft volume for sco #661

Closed xiaoyao888888 closed 1 year ago

xiaoyao888888 commented 1 year ago

When using software volume, the sco volume cannot be adjusted, while it is normal in a2dp mode, so rename a2dp.volume to volume, and both a2dp/sco profiles can use it.

arkq commented 1 year ago

So in your case scenario you would like to have software volume by default for A2DP and for HFP/HSP ? Because currently BlueALSA uses hardware volume (it simply forwards volume requests to connected BT device) by default for HFP (because it is a feature covered by very early standard of HSP, and it works reliably as far as I know), and software volume for A2DP by default. The A2DP is software by default because it was not reliably in the past (due to bugs in BlueZ). But maybe in the future I will change it to "hardware" by default as well, because everything works fine with recent versions of BlueZ (I do not remember now in which BlueZ version the bug was fixed). Anyway the software volume can be selected with alsamixer or with bluealsa-cli.