A crude approximation of voice production is to consider, Ask an Expert

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A crude approximation of voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end.

(a) Find what is the fundamental frequency if the tube is 0.250 meter long, taking air temperature to be 37°C?

(b) Find what would this frequency become if the person replaced the air with helium? Suppose the same temperature dependence for helium as air.

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