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  • Title: Spontaneous otoacoustic emissions from normal human ears. Preliminary report.
    Author: Cianfrone G, Mattia M.
    Journal: Scand Audiol Suppl; 1986; 25():121-7. PubMed ID: 3472316.
    Abstract:
    The present paper resumes the results obtained from measurement of spontaneous otoacoustic emissions (SOAEs), in terms of rate of occurrence, frequency spectrum and intra- and intersubjective variability in 104 normal ears (52 subjects). SOAEs have been detected in 27 ears (26.0%) and in 16 subjects (30.8%); bilateral SOAEs have been observed in 11 subjects (68.8%). Frequencies of the strongest emissions ranged from 1 to 2 kHz (96.3%); amplitudes varied from 3 to 20 dB SPL above the background noise. Spectra were always very sharp and stable in frequency, less in amplitude. Present results agree well with the data available in literature.
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