touch-packages team mailing list archive

[Luke Horwell <1363422@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

In Ubuntu 14.04 LTS (and possibly 13.10), input feedback sounds (played
when a button is pressed for instance) play only from the left channel
through both speakers. This version of pulseaudio is 4.0.

It is expected that the sound plays closer to the edge of the screen
where the cursor is. However, in this case, sound is quiet or heard at
all when a button or alert dialog appears closer to right edge.


This can be easily re-produced by performing the following steps on a live session of Ubuntu 14.04:

1) Type "dconf write /org/gnome/desktop/sound/input-feedback-sounds
true" into the terminal to enable input feedback sounds.

2) Open gedit, go to Help → About, and click on the "Close" button. If
the window is positioned closer to the left, it's heard clearly through
both speakers, however when nearest the right, it cannot be heard at
all, due to the fact it's outputting the left channel only.


I've attached some logs of pulseaudio which may help identify the issue.

Gathered by performing the following:
1) Edit /etc/pulse/client.conf and edit " ; autospawn = yes "  to "autospawn = no"
2) Kill the demon  " pulseaudio --kill "
3) Start the demon again and redirect log output to the live session's desktop 
    " pulseaudio --log-level=4 -v --log-target=file:/home/ubuntu/Desktop/pulseaudio.log "


For comparison, this bug does not appear to be present in Zorin OS (based on Ubuntu 14.04) by performing similar steps, with Zorin's logs are attached for comparison. Simplified logs of both OS' pulseaudio output are attached from another earlier output, which when compared for differences, shows Ubuntu tries to force a resampler 'copy'.

** Affects: pulseaudio (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: alerts audio channel input sound

** Attachment added: "Pulseaudio stderr outputs for Ubuntu and Zorin OS (for comparison)"
   https://bugs.launchpad.net/bugs/1363422/+attachment/4190851/+files/pulseaudio-output-logs.tar.gz

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1363422

Title:
  Input feedback sounds play via left channel only

Status in “pulseaudio” package in Ubuntu:
  New

Bug description:
  In Ubuntu 14.04 LTS (and possibly 13.10), input feedback sounds
  (played when a button is pressed for instance) play only from the left
  channel through both speakers. This version of pulseaudio is 4.0.

  It is expected that the sound plays closer to the edge of the screen
  where the cursor is. However, in this case, sound is quiet or heard at
  all when a button or alert dialog appears closer to right edge.

  
  This can be easily re-produced by performing the following steps on a live session of Ubuntu 14.04:

  1) Type "dconf write /org/gnome/desktop/sound/input-feedback-sounds
  true" into the terminal to enable input feedback sounds.

  2) Open gedit, go to Help → About, and click on the "Close" button. If
  the window is positioned closer to the left, it's heard clearly
  through both speakers, however when nearest the right, it cannot be
  heard at all, due to the fact it's outputting the left channel only.

  
  I've attached some logs of pulseaudio which may help identify the issue.

  Gathered by performing the following:
  1) Edit /etc/pulse/client.conf and edit " ; autospawn = yes "  to "autospawn = no"
  2) Kill the demon  " pulseaudio --kill "
  3) Start the demon again and redirect log output to the live session's desktop 
      " pulseaudio --log-level=4 -v --log-target=file:/home/ubuntu/Desktop/pulseaudio.log "

  
  For comparison, this bug does not appear to be present in Zorin OS (based on Ubuntu 14.04) by performing similar steps, with Zorin's logs are attached for comparison. Simplified logs of both OS' pulseaudio output are attached from another earlier output, which when compared for differences, shows Ubuntu tries to force a resampler 'copy'.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1363422/+subscriptions