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Hits 21 – 40 of 62

21
The Relationship Between Distortion Product Otoacoustic Emissions and Extended High-Frequency Audiometry in Tinnitus Patients
In: ETSU Faculty Works (2012)
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22
Recent Advances in Cochlear Physiology
In: ETSU Faculty Works (2012)
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23
Auditory Temporal Processing of Speech and Non-speech Contrasts in Specialized Listeners
In: ETSU Faculty Works (2012)
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24
Active Cochlear Processes and their Influence on the Generation of Otocoustic Emissions
In: ETSU Faculty Works (2011)
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25
DPOAEs in Normally Hearing Patients with Either Unilateral or Bilateral Tinnitus
In: ETSU Faculty Works (2011)
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26
Distortion Product Otoacoustic Emissions in Normal-hearing Patients with Bilateral Tinnitus and in Non-tinnitus Controls
In: ETSU Faculty Works (2011)
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27
The Role of Temporal Fine Structure Processing in “Listening in the Dips” of Noise
In: ETSU Faculty Works (2011)
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28
Temporal Processing in Patients with Tinnitus
In: ETSU Faculty Works (2011)
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29
Distortion-Product Otoacoustic Emissions in Normal-hearing Patients with Either Unilateral or Bilateral Tinnitus
In: ETSU Faculty Works (2011)
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30
The Effect of Tinnitus on Gap Detection
In: ETSU Faculty Works (2011)
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31
Influence of Low- and Ultra High-frequency Hearing Thresholds on Distortion Product Otoacoustic Emissions (DPOAEs): An Attempt to Separate DPOAE Generation Mechanisms
In: ETSU Faculty Works (2010)
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32
Binaural Performance in Normal-hearing Young Adults Influenced by Short-term Induced Unilateral Conductive and Sensory Changes
In: ETSU Faculty Works (2010)
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33
Extended High-frequency Audiometry and DPOAEs in Patients with Unilateral Tinnitus
In: ETSU Faculty Works (2010)
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34
Distortion Product Otoacoustic Emissions in Normal-hearing Patients with Unilateral Tinnitus
In: ETSU Faculty Works (2010)
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35
Matching Pursuit Algorithm Applied to the Evaluation of Click-evoked Otoacoustic Emissions Recorded with Linear and Nonlinear Protocols
In: ETSU Faculty Works (2009)
Abstract: Typically, click-evoked otoacoustic emissions (CEOAEs) are analyzed using fast Fourier transform which has greatly limited time-frequency (t-f) resolution. The purpose of the present study was to process CEOAEs recorded using linear and non-linear presentation modes by applying the Matching Pursuit (MP) method of adaptive approximation which provides a high t-f resolution. The data were recorded in 26 normal-hearing subjects using the ILO96 system with clicks presented at 78-82 dB pSPL. In the non-linear mode, a series of four clicks was delivered with three at the same level and polarity and the fourth three times greater in amplitude and inverted in polarity, whereas in the linear mode all stimuli were presented at the same level and polarity. The responses consisting of 512 data points were stored in two buffers. For each subject, 520 responses were recorded separately for off-line MP analyses. The MP method allowed decomposition of signals into waveforms of defined frequency, latency, time span, and amplitude and also identified patterns of resonance modes that were characteristic for CEOAEs recorded in each individual ear. The overall CEOAE levels were higher by 4 dB for the linear mode than those for the nonlinear method, in agreement with studies reported previously. In general, t-f properties of CEOAEs recorded with linear and non-linear protocols were similar with the exception of the 0-6-ms post-stimulus time window and the frequency range below 2.2 kHz. This part of the signal was contaminated by a stimulus artifact in the linear mode. The reproducibility factor grew faster with an increase of the number of averaged responses for the linear protocol than for the non-linear method. The results suggest that main differences between CEOAEs measured with the two methods are related to stimulus artifacts occurring at the beginning of the recording time-window in the linear mode.
Keyword: Audiology and Speech-Language Pathology; CEOAE; click-evoked otoacoustic emissions; linear protocols; nonlinear protocols; pursuit algorithm; Speech Pathology and Audiology
URL: https://dc.etsu.edu/etsu-works/2200
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36
Influence of Unilateral Tinnitus on Distortion Product Otoacoustic Emission Levels
In: ETSU Faculty Works (2009)
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37
Extended High-frequency Audiometry and Distortion Product Otoacoustic Emissions in Normal-hearing Patients with Unilateral Tinnitus
In: ETSU Faculty Works (2009)
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38
Audiology Makes Rapid Advances in Poland
In: ETSU Faculty Works (2008)
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39
Ultra-high Frequency (UHF) Hearing and DPOAE Levels at Lower Frequencies
In: ETSU Faculty Works (2008)
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40
Otoacoustic Emissions Evoked by Two-Tone Bursts Using Linear and Non-Linear Protocol
In: ETSU Faculty Works (2008)
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