sound: Testing mono output plays back noise

[David Henningsson]

When having a mono output source, such as BT HFP/HSP, unity-control-center by default plays /usr/share/sounds/freedesktop/stereo/audio-test-signal.oga
 - which is a sample of noise.

This makes it hard to know whether the speaker test works successfully, e g, if the sound output is noisy because of some bug, you will not notice (it's noise either way!).

It would be better if the test button was a spoken voice, just like when you test "Front Left", "Front Right" etc.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity-control-center 14.04.3+14.04.20140922-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-31.43~14.04.1-generic 3.16.7-ckt5
Uname: Linux 3.16.0-31-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Jun 2 10:53:12 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-03-07 (451 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140307)
SourcePackage: unity-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_unity-control-center: deja-dup 30.0-0ubuntu4

[David Henningsson (diwic)]

This is the "code" part of the solution. Then we need someone to draw icons and record sound for these new channels, too.

[David Henningsson (diwic)]

Corresponding upstream bug:
https://bugzilla.gnome.org/show_bug.cgi?id=750324

[Sebastien Bacher (seb128)]

Thanks David, the change was commited upstream
https://git.gnome.org/browse/gnome-control-center/commit/?id=c4b4b8bdc5534108668d7c2c0a4d4779f965ea24

Could you maybe merge propose the change against lp:unity-control-center?

What is the UI looking like if we don't get new sounds/icons? Do you know what GNOME did for those?

[David Henningsson (diwic)]

At this point, what we need is actually someone recording the sound and drawing the icons. (Or have GNOME do it for us?)

IIRC, if we merge this patch without new icons and sounds:
 - the sound will fall back the same noise (i e bug remains unfixed)
 - the icon might be worse off (displaying a "broken" icon of some sort). I guess this can be worked around with symlinking one of the existing speaker icons.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.