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Re: [Phys-L] non-linear ears.

Now I wish I’d heard or thought of that. Back in 1959 for a Psych. paper (Psy. 1, UCSB), having only one oscillator I recorded (and played) one tone (1/4” tape) and operated the oscillator at various frequencies to hear the Tartini tritones. A friend who recorded the student recitals at the Music Academy of the West (Lotte Lehman’s) assisted (his recorder!) He had good hearing, so identified the notes.

bc suffering nostalgia.

On 2020/Oct/09, at 16:29, John Denker via Phys-l <> wrote:

Tangentially related: Nonlinear auditory cortex.

You can play sine waves of two different frequencies, one in each ear,
and hear the beat note.

This has been known in the literature for eons. It shoots down a great
many simplistic theories about how the auditory system works.

See e.g. the following, and references therein:
Forum for Physics Educators