GNOME Bugzilla – Bug 742710
ORC 0.4.23 makes mono audio in pulseaudio super loud.
Last modified: 2015-01-11 14:17:28 UTC
pulseaudio uses orc to do the mix, and after upgrading to orc 0.4.23, mono audio played through pulseaudio become unbearably loud if volume < 100%. Downgrade to orc 0.4.22 fix this problem.
The offending commit is: commit a62eefc1dc716046d99aacec208cfdfe42dadb34 compiler: keep track of temp variables that contain param/const
Most probably duplicate of bug 742271 Check if patch to pulseaudio as found at http://lists.freedesktop.org/archives/pulseaudio-discuss/2015-January/022905.html fixes it.
As Mart said. Please re-open if it's indeed an unrelated issue. *** This bug has been marked as a duplicate of bug 742271 ***