Android Bluetooth Earpiece Volume

Question

how can I programmatically set the system volume for voice call when using a bluetooth earpiece?

Using this:

mAudioManager.setStreamVolume(AudioManager.STREAM_VOICE_CALL, myVolume, 0);

when a call (using the Earpice) is in progress it doesn't change anything.

I searched a lot before posting, but can't find any hint on how to do it.

Thanks in advance.

score 16 · Accepted Answer · answered Feb 04 '12 at 02:15

16

I also got in same problem and found out that, Android is using int 6 for bluetooth volume and not documented.

Just use 6 instead of AudioManager.STREAM_VOICE_CALL and try, It should work

answered Feb 04 '12 at 02:15

Mehul Shah

awesome hint, frustrating that this is not documented. while it works, I have one problem with this: the volume control (the one that the system shows when you change the volume using volume up/down hardwre keys on the phone) isn't shown - any way to fix this? – stefan.at.kotlin Dec 02 '12 at 11:48
by the way, how did you find that out? you checked the source code? which source file exactly is it? thanks :-) – stefan.at.kotlin Dec 02 '12 at 11:49
and here is how to show the volume control: http://stackoverflow.com/questions/3581722/trigger-system-volume-bar?rq=1 :-) – stefan.at.kotlin Dec 02 '12 at 11:52
@stefan.at.wpf I checked logs for CS call and found it. Logs are printing those values :) – Mehul Shah Jun 19 '14 at 18:21
You are late with your reply :P No, seriously, thanks for it, even after that long time! – stefan.at.kotlin Jun 19 '14 at 19:57
@stefan.at.wpf not a frequent SO user :) – Mehul Shah Jun 19 '14 at 19:59

score -1 · Answer 2 · edited May 03 '19 at 10:26

-1

This will work.

mAudioManager.setStreamVolume(6, value, 0 /* flags, 0 = no flags */);

edited May 03 '19 at 10:26

4b0

answered May 03 '19 at 10:17

2 Answers2