What noises are at 4000 Hz?
What noises are at 4000 Hz? Examples of low-pitched (125, 250 Hz) sounds include environmental sounds such as ocean waves or a truck, while high-frequency (4000, 8000 Hz) sounds are exemplified by sounds such as a bird (sparrow/robin, not ducks or geese) or a piccolo. [Hz is hertz, cycles per second].
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