[mako] high cpu usage when playing audio via speaker

[Andrew Hayzen]

$ 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.

[Jim Hodapp (jhodapp)]

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.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 14.10 (utopic) reached end-of-life on July 23, 2015.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]