I have an audio stream paused in Firefox, and an MP3 playing in Audacious. When I adjust the master PulseAudio volume from the desktop, the levels for both Firefox and Audacious in Sound Preferences also go up and down. But the volume level on the main Audacious window does *not* move. If I turn down the desktop volume but then go to adjust the level using the Audacious window, the volume jumps abruptly back to where it started. The internal and PulseAudio volume sliders should be synchronized. This was originally reported under bug 501972, but Lennart Poettering thought it was an Audacious problem, not a PulseAudio problem. Versions: audacious-1.5.1-11.fc11.i586 pulseaudio-0.9.15-17.fc11.i586
Such a feature will be in Audacious 2.2.