This is because Banshee (and I'm assuming Totem as well) use the GStreamer Volume property. It doesn't use pulse directly. This may really be a bug in GStreamer or PulseAudio.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/692887 Title: Banshee does not register volume level correctly in the Sound preferences > 'Applications' tab -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs