title: Are spontaneous otoacoustic emissions generated by self-sustained cochlear oscillators?
abstract: Theoretical analyses supporting the assumption that spontaneous otoacoustic emissions (SOAEs) can be described as self-sustained oscillations (requiring a power source) are reviewed and extended. Spectral and statistical properties of spontaneous otoacoustic emissions are examined and shown to be consistent with this assumption. Several alternative models of spontaneous emissions (noise-driven saturating memoryless nonlinearity, noise-driven nonlinear-stiffness oscillator) are examined. Although some of these models are able to produce the types of statistical distributions of amplitude and displacement similar to those observed in the experimental data, this similarity is destroyed upon narrow-band filtering.
authors.affiliation: Department of Physics, Purdue University, West Lafayette, Indiana 47907.
authors.forename: C L
authors.initials: CL
authors.lastname: Talmadge
authors.forename: A
authors.initials: A
authors.lastname: Tubis
authors.forename: H P
authors.initials: HP
authors.lastname: Wit
authors.forename: G R
authors.initials: GR
authors.lastname: Long
mesh_terms: D000818:Animals; D003051:Cochlea / Q000502:physiology*; D003055:Cochlear Microphonic Potentials / Q000502:physiology*; D003198:Computer Simulation; D004424:Ear Canal / Q000502:physiology*; D006309:Hearing / Q000502:physiology*; D006801:Humans; D011571:Psychoacoustics; D013018:Sound Spectrography