title: Extraction of otoacoustic distortion product sources using pulse basis functions.
abstract: Distortion product otoacoustic emissions (DPOAEs) acquired in normal-hearing subjects show considerable variation in amplitude with varying frequency. This is known as DPOAE fine structure. It is widely accepted that fine structure results from wave interference from two DPOAE sources, a non-linear generation component and a coherent reflection component. Here a method is presented that decomposes short-pulse DPOAE recordings into pulse basis functions and enables the quantification of both source components in the time domain, independent of their relative phase and at low cost of measurement time. Input-output functions utilizing the extracted primary-source component are analyzed.
authors.affiliation: Section of Physiological Acoustics and Communication, Department of Otolaryngology, Eberhard-Karls-University Tübingen, Elfriede-Aulhorn-Strasse 5, 72076 Tübingen, Germany. dennis.zelle@uni-tuebingen.de
authors.forename: Dennis
authors.initials: D
authors.lastname: Zelle
authors.forename: Anthony W
authors.initials: AW
authors.lastname: Gummer
authors.forename: Ernst
authors.initials: E
authors.lastname: Dalhoff
mesh_terms: D000161:Acoustic Stimulation / Q000295:instrumentation; D002138:Calibration; D004867:Equipment Design; D018072:Hair Cells, Auditory, Outer / Q000502:physiology; D006801:Humans; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology*; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted; D013018:Sound Spectrography / Q000295:instrumentation