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I have a pair of bluetooth headphones which have a 'standby' mode, in which they drop into a low-power state when the computer they are connected it isn't sending them an audio stream.

I can tell if they are in this low-power state because they make a very quiet buzzing sound when there's no sound playing, and this noise stops when they go into standby.

Unfortunately, with Ubuntu, they aren't dropping into this low-power state at all, at least until I manually restart pulseaudio with pulseaudio --kill; pulseaudio --start and then manually reconnect to the headphones through the bluetooth menu.

Sometimes I'll have to run the above several times in a day.

My question is this: How can I configure Ubuntu to cut the audio stream going to my bluetooth headphones when it's silent (even if an application is technically playing 'audio')?

I think I'm after a noise gate, but for the output stream rather than the input stream.

Edit: This is still an issue on both 20.04 and 20.10.

starbeamrainbowlabs
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  • This still happen to you on 20.04? Add the Brand+Model of the BT headphones. Check `journalctl -p warning | grep pulseaudio`. Did you try [muting completeley](https://askubuntu.com/a/404242/349837)? – Pablo Bianchi Jun 24 '21 at 16:18
  • Added details to the end of the question @PabloBianchi. In short: yes, this in still an issue. – starbeamrainbowlabs Jun 27 '21 at 00:57

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