Summary
Spontaneous cochlear emissions consist of one or more sinus tones. Oscillations and frequency shifts clearly widen averaged traces. Multiple peaks, if present, are spaced at intervals of 2–3‰ of the frequency, and increase with frequency. A frequency jump by the same amount was seen in one case. This appears to represent the distance between hair cells, and suggests that individual hair cells play a leading role in these oscillations.
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References
Fritze W (1983) Registration of spontaneous cochlear emissions by means of Fourier transformation. Arch Otorhinolaryngol 238:189–196
Fritze W (1983) On the frequency-distribution of spontaneous cochlear emissions. In: Klinke R, Hartmann R (eds) Hearing—physiological bases and psychophysics. Springer, Berlin Heidelberg New York Tokyo
Ruggero MA, Rich NC, Freyman R (1983) Spontaneous and impulsively evoked otoacoustic emissions: indicators of cochlear pathology? Hearing Res 10:283–300
Schloth E (1982) Oto-akustische Emissionen. Thesis, München
Schloth E (1983) Relation between spectral composition of spontaneous oto-acoustic emissions and fine-structure of threshold in quiet. Acoustica 53:250–256
Wit HP, Langevoort JC, Ritsma RJ (1981) Frequency spectra of cochlear acoustic emissions (“Kemp-echoes”). J Acoust Soc Am 70:437–445
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Fritze, W., Köhler, W. Frequency composition of spontaneous cochlear emissions. Arch Otorhinolaryngol 242, 43–48 (1985). https://doi.org/10.1007/BF00464404
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DOI: https://doi.org/10.1007/BF00464404