This bug was fixed in the package pulseaudio - 1:11.1-1ubuntu7.1
---------------
pulseaudio (1:11.1-1ubuntu7.1) bionic; urgency=medium
* 0804-bluez5-device-Rewrite-of-thread-function-reduce-send.patch,
0805-bluez5-device-Fix-memory-leak-in-sco_process_render.patch:
- Reduce latency over bluetooth, using A2DP, when the connection drops
temporarily (LP: #405294).
-- Alberto Milone <[email protected]> Mon, 21 May 2018
16:41:41 +0200
** Changed in: pulseaudio (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/405294
Title:
A2DP Bluetooth audio skips terribly ["Skipping NNN us (= MMM bytes) in
audio stream"]
Status in PulseAudio:
Fix Released
Status in pulseaudio package in Ubuntu:
Fix Released
Status in pulseaudio source package in Bionic:
Fix Released
Bug description:
SRU Request:
[Impact]
When the connection drops temporarily, using A2DP, a noticeable latency is
introduced, and the audio goes out of sync.
[Test Case]
1) Enable the -proposed repository, and install the new pulseaudio
2) Restart your computer, connect it to a bluetooth device (e.g. a
headset or a speaker), play one or more videos either locally or
online, and see if you can still reproduce the problem.
[Regression Potential]
Low, as the changes are upstream, and, if anything, it should also fix a
memory leak.
Furthermore, the changes only affect the bluez5-device module, in
pulseaudio, and they make the buffer updating logic more conscious of
how things can change when the connection drops. This is unlikely to
affect anything else in pulseaudio.
____________________________________________________________________
As I upgraded to the Karmic alpha, bluetooth audio (via a2dp) stopped working
properly. It was working fine in Jaunty.
My headphones are detected and configured by pulse, but the audio
skips as if it's spending half of each second paused. Music is
buffered so that after I click stop on rhythmbox (or whatever--it
happens with whatever player I use) the audio continues until it's
caught up.
syslog is full of the following lines:
Jul 27 08:55:45 carlin1 pulseaudio[3218]: alsa-source.c: Increasing minimal
latency to 1.00 ms
Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping
15128 us (= 2668 bytes) in audio stream
Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping
36586 us (= 6452 bytes) in audio stream
Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping
35593 us (= 6276 bytes) in audio stream
Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping
36597 us (= 6452 bytes) in audio stream
Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping
32601 us (= 5748 bytes) in audio stream
Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping
32589 us (= 5748 bytes) in audio stream
This is with
bluez 4.45-0ubuntu4
pulseaudio 1:0.9.15-4ubuntu2 0
pulseaudio version 1:0.9.16~test2-0ubuntu1~ppa3 from ubuntu-audio-dev
didn't help.
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