I am running Whonix 11 under KVM (on Linux Mint) but I don’t think this issue is specific to either the virtualizer or the host. Feel free to move it if it is.
I notice that any changes I make to sound settings within Workstation itself, for example to mute all sound output completely, is not respected within Workstation, and any sounds that are played (system, music, video files, internet etc) are still at full volume just the same.
If I mute sound using the host system settings (Mint) then it works, but no changes seem to be feasible under Workstation as a guest whatsoever. Is there an extra step needed in order to give audio control within the guest to itself?
Edit by Patrick: added KVM to subject.