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Message #54680
[Bug 1373392] Re: [mako] high cpu usage when playing audio via speaker
This is an issue that needs to be optimized for each supported device
platform. It's currently optimized for krillin, but not yet for the
nexus 4, 7 or 10.
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Touch seeded packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1373392
Title:
[mako] high cpu usage when playing audio via speaker
Status in pulseaudio package in Ubuntu:
Confirmed
Bug description:
$ system-image-cli -i
current build number: 253
device name: mako
channel: ubuntu-touch/devel-proposed
alias: ubuntu-touch/utopic-proposed
last update: 2014-09-24 00:51:54
version version: 253
version ubuntu: 20140923.1
version device: 20140923.1
version custom: mako-0.6
I noticed that when playing audio via the speaker/headphones the CPU
usage is higher than when playing via a paired bluetooth speaker.
Speaker CPU usage:
Format pulse media-hub
m4a 30 20
flac 30 15
mp3 25 20
Bluetooth Speaker CPU usage:
Format pulse media-hub
m4a 10 15
flac 10 10
mp3 15 10
It has been suggested that changing the buffer size may resolve this
issue.
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References