Distortion product otoacoustic emissions created through the interaction of spontaneous otoacoustic emissions and externally generated tones.


Spontaneous otoacoustic emissions (SOAEs) and external tones (XTs) were used as primaries f2 and f1, respectively (frequency of f2 > f1) to create 2f1--f2 distortion product otoacoustic emissions (DPOAEs). Amplitude and frequency of the SOAEs, XTs, and DPOAEs were recorded by placing a sensitive microphone in the ear canal and extracted using fast Fourier… (More)


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