Does the helium in Heliox and Trimix cause Scuba Skeletons voice to get all squeaky, as if hed been breathing from a helium balloon?
Yes. Because helium is less dense the the normal atmospheric mixture, a person breathing a mixture that contains helium will find their vocal cords vibrating at a much higher pitch, and their voice will sound much higher pitched. Professional divers use vocal descramblers to communicate with each other.
