Atlanta_Ort
Since: Sep, 2017
Sep 23rd 2017 at 7:14:00 AM
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"it causes the vocal cords to vibrate at a higher frequency"
The explanation is wrong: The vocal chords don't move faster.
What happens is that the speed of sound in the gas is higher, leading to a higher pitch. The same effect occurs when air is warmed (slightly), leading to a higher speed of sound, which causes wind instruments to go up in frequency.
I am non native in English, so a native speaker might find the correct wording.
augmention
Since: Nov, 2016
Dec 23rd 2016 at 11:34:52 AM
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What would you call the subtrope in which someone says something tragic with helium voice and laughter ensues?
Does this trope cover only cases where the strange voice is explicitly caused by helium or a similar gas? Or every time someone's voice sounds like they inhaled helium?