What determines the pitch of our voices?
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Basically it is the length of our vocal cords, which are the tiny folds of tissue that vibrate when we speak or sing. Longer vocal cords produce a lower voice. You can think of it like a harp, where the high notes come from plucking the shorter strings. But the resonance of the voice can change how deep it sounds too, and this is determined by the shape and size of the inside of your mouth and throat. A very husky voice can also sound lower than it actually is, too. A good example is Bryan Adams, who has a high tenor voice but many people don’t realise because of the huskiness.
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