scholarly journals Comparison of time-domain source-separation techniques for short-pulse distortion-product otoacoustic emissions

2017 ◽  
Vol 142 (6) ◽  
pp. EL544-EL548 ◽  
Author(s):  
Dennis Zelle ◽  
Ernst Dalhoff ◽  
Anthony W. Gummer
Keyword(s):  
Time Domain ◽  
Otoacoustic Emissions ◽  
Short Pulse ◽  
Source Separation ◽  
Distortion Product Otoacoustic Emissions ◽  
Separation Techniques ◽  
Distortion Product ◽  
Pulse Distortion ◽  
Domain Source

scholarly journals Time-domain analysis of distortion-product otoacoustic emissions using a hydrodynamic cochlea model

2017 ◽  
Vol 3 (2) ◽  
pp. 453-456
Author(s):  
Dennis Zelle ◽  
Ernst Dalhoff ◽  
Anthony W. Gummer
Keyword(s):  
Time Domain ◽  
Otoacoustic Emissions ◽  
Short Pulse ◽  
Human Subjects ◽  
Time Domain Analysis ◽  
Distortion Product Otoacoustic Emissions ◽  
Sound Waves ◽  
Cochlear Function ◽  
Distortion Product ◽  
The Time Domain

AbstractAs a by-product of nonlinear amplification in the cochlea, the inner ear emits sound waves in response to two tones with different frequencies. These sound waves are measurable in the ear canal as distortion-product otoacoustic emissions (DPOAEs). DPOAEs putatively consist of two components emerging at different locations in the cochlea. Wave interference between the two components limits the accuracy of DPOAEs as a noninvasive measure of cochlear function. Using short stimulus pulses instead of continuous stimuli, the two DPOAE components can be separated in the time domain due to their different latencies. The present work utilizes a nonlinear hydrodynamic cochlea model to simulate short-pulse DPOAEs in the time domain. When adding irregularities to the mechanical parameters of the model, the simulated DPOAE signals show two distinguishable components and long-lasting beat tones, similar to band-pass filtered experimental data from normal-hearing human subjects. The model results suggest that the beat tones can occur solely due to interference of the coherent-reflection component with the fading nonlinear-distortion component.

Relationship Between Distortion Product Otoacoustic Emissions and Hearing Loss

2006 ◽  
Vol 2 (1) ◽  
pp. 2-9
Author(s):  
Tiffany A. Johnson ◽  
Stephen T. Neely ◽  
Michael P. Gorga
Keyword(s):  
Hearing Loss ◽  
Otoacoustic Emissions ◽  
Distortion Product Otoacoustic Emissions ◽  
Distortion Product

Distortion product otoacoustic emissions upon ear canal pressurization

2013 ◽  
Vol 133 (4) ◽  
pp. EL331-EL337 ◽  
Author(s):  
Makram Zebian ◽  
Volker Schirkonyer ◽  
Johannes Hensel ◽  
Sven Vollbort ◽  
Thomas Fedtke ◽  
...  
Keyword(s):  
Otoacoustic Emissions ◽  
Distortion Product Otoacoustic Emissions ◽  
Ear Canal ◽  
Distortion Product

Dependence of distortion‐product otoacoustic emissions on primary levels in normal and impaired ears. II. Asymmetry in L1,L2 space

1995 ◽  
Vol 97 (4) ◽  
pp. 2359-2377 ◽  
Author(s):  
M. L. Whitehead ◽  
B. B. Stagner ◽  
M. J. McCoy ◽  
B. L. Lonsbury‐Martin ◽  
G. K. Martin
Keyword(s):  
Otoacoustic Emissions ◽  
Distortion Product Otoacoustic Emissions ◽  
Distortion Product
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