Analysis of spontaneous and click-evoked otoacoustic emissions in newborns

Scandinavian Audiology. Supplementum
P RavazzaniF Grandori

Abstract

This paper addresses the quantitative investigation of the contribution of spontaneous (SOAE) to click-evoked (TEOAE) otoacoustic emissions in newborns. The hypothesis was that a weighted linear combination of the spontaneous peaks is strongly similar to the corresponding click-evoked emissions. After identification of the main spontaneous peaks for each subject, a best fit procedure was applied to find the amplitude and phase of each spontaneous tone in the weighted summation. The comparison of the weighted signal (SpTEOAE) with the actual click-evoked response (TEOAE) from the same subject was performed, obtaining correlation coefficient higher than 50% in more than 100 ears over 132.

References

Nov 1, 1978·The Journal of the Acoustical Society of America·D T Kemp
Aug 1, 1987·British Journal of Audiology·P Bray, D Kemp
Jan 1, 1997·Acta Oto-laryngologica·D AidanP Bonfils

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