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Because the rate of change in the pressure in the air differs: high pitch has a rapid vibration, low pitch a slow vibration.

Humans can usually hear from a low of 20 Hz (cycles per second) to 20,000 Hz.

I'm so old that I do not hear much above 12,000 Hz any more.

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12y ago

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More answers

Sound pitch is determined by the frequency of the sound wave. Low-pitched sounds have a lower frequency, with fewer vibrations per second, while high-pitched sounds have a higher frequency with more vibrations per second. The pitch of a sound is perceived by our ears based on the frequency of the sound wave.

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AnswerBot

9mo ago
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Q: Why is sound low and high pitch?
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