Public bug reported:
Binary package hint: gnome-media
Using either the panel volume control or the master volume slider in
gnome-volume-control (see attached screen shot) there is a high pitched
distortion when playing sound. This distortion seems to disappear at
~5% intervals along these 2 slider controls.
In the attached image, note that the 100% mark is only about 2/3rds up
on the slider, this may be a significant part of the problem.
To reproduce the problem, the hardware tab setting must be in one of the
5.1 modes, the stereo modes don't seem to have this problem.
Also, individual application sliders do not seem to have this effect. If
I tune the master volume to a point with no distortion I can manipulate
the app specific volume controls and not introduce distortion.
maybe helpful info:
~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC888 Digital [ALC888 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
~$ lsb_release -rd
Description: Ubuntu 9.10
Release: 9.10
~$ apt-cache policy gnome-media
gnome-media:
Installed: 2.28.1-0ubuntu1
Candidate: 2.28.1-0ubuntu1
Version table:
*** 2.28.1-0ubuntu1 0
500 http://archive.ubuntu.com karmic/main Packages
100 /var/lib/dpkg/status
** Affects: gnome-media (Ubuntu)
Importance: Undecided
Status: New
** Tags: gnome-media karmic sound
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volume control causes high pitched distortion
https://bugs.launchpad.net/bugs/466936
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