Question

sound normal human being can hear is called​

Answer 1

Answer:

20hz to 20khz is the answer

Answer 2

Answer:

ultrasound

Explanation:

Sounds with frequencies above the realms of human ears are called ultrasound and those below are called infrasound. Though we're capable of distinguishing between 1400-odd pitches, most of the important speech-related sounds fall within a narrow, relatively low spectrum.

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