Fine Structure in Distortion Product Otoacoustic Emissions and Auditory Perception
نویسندگان
چکیده
4 The influence of the second source of distortion product otoacoustic emissions (DPOAE) on DPOAE input/output functions 41 INTRODUCTION 42 I. EXPERIMENTAL METHODS 45 A. Subjects 45 B. Instrumentation and signal processing 45 C. Calibration 46 D. DPOAE measurements 46 II. DATA ANALYSIS 47 A. Separation of DPOAE components via time windowing 47 B. DPOAE threshold according to Boege and Janssen 50 III. RESULTS 52 A. Contribution of the second source to the DPOAE at different levels 52 B. Variability of DPOAE I/O functions vs. DCOAE I/O functions 54 C. Variability of threshold prediction from DPOAE I/O and DCOAE I/O functions 56 D. Influence of the calibration paradigm in comparison to the influence of the second source on threshold estimation 59 IV. DISCUSSION 61 V. CONCLUSION 65 ACKNOWLEDGEMENTS 66 ENDNOTES 66
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