Spectral Analysis of Sounds by Acoustic Hearing Analyzer

It is shown that the transient evoked otoacoustic emission in response to a short (broadband) sound impulse is an impulse function of the auditory canal, middle ear, and cochlea of the inner ear. Its form corresponds to the basic functions form of wavelet representations of the "convexity" type, which are characterized by a shift (delay) in time, position and shift of position. It is established that the division into frequency groups, which is the main property of hearing, does not occur in the central nervous system, as previously thought, but in an acoustic auditory analyzer. It is a correlation filter with many inputs - transverse fibers and exits of the outer hair cells to the nerve fibers. The acoustic system of the acoustic analyzer is a unique correlation filter, i.e. a kind of patent of nature.