Although the vocal tract is quite complicated, we can make a simple model of it as an

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Although the vocal tract is quite complicated, we can make a simple model of it as an open-closed tube extending from the opening of the mouth to the diaphragm, the large muscle separating the abdomen and the chest cavity. What is the length of this tube if its fundamental frequency equals a typical speech frequency of \(200 \mathrm{~Hz}\) ? Assume a sound speed of \(350 \mathrm{~m} / \mathrm{s}\). Does this result for the tube length seem reasonable, based on observations on your own body?

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