When you speak after breathing helium, in which the speed of sound is much greater than
Chapter 16, Problem 13(choose chapter or problem)
When you speak after breathing helium, in which the speed of sound is much greater than in air, your voice sounds qui tedifferent. The frequencies emitted by your vocal cords do notchange since they are determined by the mass and tension ofyour vocal cords. So what does change when your vocal tract isfilled with helium rather than air?
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