Unfortunately this problem still stands. In Pulseaudio 8.0 there's a new API that could be used as a solution.
"There's a new API for controlling the LFE (a.k.a. subwoofer) channel volume relative to all other (except mono and aux) channels. Some background: the "native" volume representation in PulseAudio is to have independent volume for each channel, but some UIs may prefer to have one "overall volume" slider and two sliders for controlling the left-right and rear-front balances. There have always been helper functions for mapping the left-right and rear-front balances to per- channel volumes and vice versa. The LFE channel is not included in any of the conversions, however. To allow users to also control the LFE channel volume some UIs (at least the Gnome sound configuration tool) have added the LFE channel control as a separate slider, but in practice that had weird interactions with the overall volume slider. To resolve this problem, we now have helper functions for controlling the balance between LFE and non-LFE channels, which allow changing the balance without affecting the overall volume. All applications that present the left-right and rear-front balances to the user are advised to start using the new API for dealing with the LFE volume. The new functions are pa_cvolume_get_lfe_balance, pa_cvolume_set_lfe_balance and pa_channel_map_can_lfe_balance." -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/653446 Title: kmix breaks pulseaudio volume per channel setup when changing volume to 100% or 0% To manage notifications about this bug go to: https://bugs.launchpad.net/kdemultimedia/+bug/653446/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
