Re: Non-linearity of the human ear
The non-linearity of the human ear has been known for a long time.
Some pipe organs have a 'quint' an added rank of pipes tuned to 1.5 times the frequency of the main rank. These have to be loud ranks because they rely on the ear to mix f and 1.5f to give a beat note at 0.5f. So creating the appearance of sounds a full octave below the main rank.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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