Ambient Sounds Not Muting

In a game with only Special Effects sounds enabled, there are various sounds that happen that seem to behave strangely. Ambience Volume does not seem to actually change the sound volume of the "background" noise. If I toggle "Disable all sounds" sometimes I can remove almost all noise other than the Special Effects noises. Usually after moving to a different area, the noises can come back. For example: Moving to carousel turns on fire noises, lightning or wind. Toggle Disable all sounds removes them.

Seems if the only volume I have turned up is special effects, I'd like not to hear "Ambience" sounds.