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[Bug 1373392] [NEW] [mako] high cpu usage when playing audio via speaker

 

Public bug reported:

$ 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.

** Affects: pulseaudio (Ubuntu)
     Importance: High
     Assignee: Ricardo Salveti (rsalveti)
         Status: Confirmed

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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1373392/+subscriptions


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References