I have no clue... usually I turn volume on down or mute for good when I watch porn, so neighbors won't get bothered... Everytime I have tried to turn sounds on, those pornstars sound like a man and that's just too weird when you hear pornstar scream like a guy and your neighbors hear guy screaming like a girl; "Take me an put it in my ass! Oh, yes, fuck me harder!"... I only ever visit grocery when it's late and dark at night... Thought on the opposite end they have those high pitched voiced that make it sound on the neighbor like some ballbusting femdom play on helium would be happening; "Yes, stop, no, don't stop, more, stop, no don't... stop stop.... iiiiihhhhhhhnnnnhhhhbrrrzzzz..."