In the Wii port, the sound settings are not taken into account at all.
It would be nice if this would be implemented.
My Wii e. g. produces very loud output while the TV program has very quite output.
This way I have for Wii about 10-20% volume and for TV 70-100% volume.
If I switch between both it would be cool to set the volume in ScummVM to a relatively low value so that I can stick with 70-100% volume while zapping between ScummVM and TV.