What is the approximate range of frequencies (?) in human speech and their corresponding wavelengths? For all practical purposes, the speed of sound in air may be assumed = 1,000 ft/s in place of its exact value of 1130 ft/s.
What will be an ideal response?
Sound frequencies in human speech vary from 200 Hz to 5kHz.
Approximate value of wavelength, ? at 200 Hz = (1,000/200) = 5 ft; ? at 5 kHz = (1,000/5,000) = 0.2 ft = 2.5 in. approximately.
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