answered
2015-05-26 22:11:34 +0200
As @juiceme said, power consumption on your BT headset would not be much higher when playing all the system sounds instead of staying in stand-by mode. But I look at the "problem" from another angle: I do not want to hear any system sounds on my BT speaker at all, as I want to use it to play music and nothing else.
Basically, the problem is twofold. You have the phone on one side and the BT device on the other side. The latter may turn into stand-by mode (or not) when not used for a certain period and wake up triggered by new transmitted signals (or not); e.g. I have to activate mine manually after it has fallen asleep. So this is mainly depending on hardware (or its firmware to be precise), and on that side there is not quite much to do about it.
The problem is more difficult on the phone's side. But there I think it could be possible to change the main behaviour. Depending on the BT device's type there are specific configurations loaded. By these configs the phone decides which audio channel or pulseaudio sink (1) is transmitted to the BT device. To change configs used you could just go to Settings > System > Bluetooth, long-tap the paired device to show device settings and change the type, represented by those configs I mentioned. I think the configs can be found at /etc/bluetooth, but maybe there is more at another path. I would appreciate any hint on this, btw.
Simply put, if we find a way to create a config that allows system sounds like those from the keyboard typing not to be sent out, your headset would stay on stand-by and you would not hear any of the sounds even if it is awake again.
To say no more, this is where my present knowledge came to a bitter end and I had to raise a request: https://together.jolla.com/question/84999/make-output-of-notification-sounds-to-bluetooth-speaker-optional/ . Anybody is welcome to post his or her findings and we will maybe or hopefully solve this issue together soon :).
Of course another approach is to simply silence sounds. This way all system sounds are muted but you still can listen to your music or talk on the phone. You will not hear it ringing, though.
(1) Regarding pulseaudio sinks see documentation on pactl (e.g. here)
I'm sorry I cannot understand what your problem is?
It's not a language problem, seems your english is passable enough but please explain a bit what the actual problem is? What do you mean by tipping, and what is base noise?
juiceme ( 2015-05-26 12:58:04 +0200 )editSo basically, you do not want to hear all sounds in your bt headset, right?
lakutalo ( 2015-05-26 15:39:50 +0200 )editNot when I don't play something. attach a bluetooth headset to your jolla and you'll hear what I meant.
Thaodan ( 2015-05-26 15:43:10 +0200 )editRefining my question to any sounds instead of all sounds: Depending on the bt device, it will turn into idle mode after a couple of minutes without input and no longer play any sounds unless you reactivate it, just like my bt speaker does.
lakutalo ( 2015-05-26 15:53:32 +0200 )editit's in idle mode, but writing something activates it.
Thaodan ( 2015-05-26 16:03:36 +0200 )edit