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I would think that humans hear high pitches better.

As humans age, our hearing diminishes, usually affecting the higher frequencies (pitches) first. The hearing range of a young person is about 20Hz to 20KHz an the response is reasonably flat. Due to ageing factors, eardrum thickening, small hairs flattening, work noise etc., a middle aged man might have a response of 14Hz to 14KHz with 'notches' of attenuation relating to the frequency of ambient work noise. Womens hearing degrades at a slower rate than men. See also: http://www.dspguide.com/ch22/1.htm

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17y ago

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