Spectral modulation detection and vowel and consonant identifications in cochlear implant listeners

2009 ◽  
Vol 126 (3) ◽  
pp. 955-958 ◽  
Author(s):  
Aniket A. Saoji ◽  
Leonid Litvak ◽  
Anthony J. Spahr ◽  
David A. Eddins
Keyword(s):  
Cochlear Implant ◽  
Spectral Modulation ◽  
Modulation Detection

scholarly journals The Relationship Between Spectral Modulation Detection and Speech Recognition: Adult Versus Pediatric Cochlear Implant Recipients

2018 ◽  
Vol 22 ◽  
pp. 233121651877117 ◽  
Author(s):  
René H. Gifford ◽  
Jack H. Noble ◽  
Stephen M. Camarata ◽  
Linsey W. Sunderhaus ◽  
Robert T. Dwyer ◽  
...  
Keyword(s):  
Speech Recognition ◽  
Cochlear Implant ◽  
Spectral Modulation ◽  
Modulation Detection ◽  
The Relationship

scholarly journals Clinical Application of Spectral Modulation Detection: Speech Recognition Benefit for Combining a Cochlear Implant and Contralateral Hearing Aid

2020 ◽  
Vol 63 (5) ◽  
pp. 1561-1571 ◽  
Author(s):  
David M. Kessler ◽  
Jace Wolfe ◽  
Michelle Blanchard ◽  
René H. Gifford
Keyword(s):  
Speech Recognition ◽  
Cochlear Implant ◽  
Hearing Aid ◽  
Clinical Sample ◽  
Low Frequency ◽  
Spectral Modulation ◽  
Pure Tone Average ◽  
Recognition Testing ◽  
Modulation Detection ◽  
The Relationship

Purpose The purpose of this study was to investigate the relationship between speech recognition benefit derived from the addition of a hearing aid (HA) to the nonimplanted ear (i.e., bimodal benefit) and spectral modulation detection (SMD) performance in the nonimplanted ear in a large clinical sample. An additional purpose was to investigate the influence of low-frequency pure-tone average (PTA) of the nonimplanted ear and age at implantation on the variance in bimodal benefit. Method Participants included 311 unilateral cochlear implant (CI) users who wore an HA in the nonimplanted ear. Participants completed speech recognition testing in quiet and in noise with the CI-alone and in the bimodal condition (i.e., CI and contralateral HA) and SMD in the nonimplanted ear. Results SMD performance in the nonimplanted ear was significantly correlated with bimodal benefit in quiet and in noise. However, this relationship was much weaker than previous reports with smaller samples. SMD, low-frequency PTA of the nonimplanted ear from 125 to 750 Hz, and age at implantation together accounted for, at most, 19.1% of the variance in bimodal benefit. Conclusions Taken together, SMD, low-frequency PTA, and age at implantation account for the greatest amount of variance in bimodal benefit than each variable alone. A large portion of variance (~80%) in bimodal benefit is not explained by these variables. Supplemental Material https://doi.org/10.23641/asha.12185493

scholarly journals Evaluation of Cochlear Implant Candidates using a Non-linguistic Spectrotemporal Modulation Detection Test

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ji Eun Choi ◽  
Sung Hwa Hong ◽  
Jong Ho Won ◽  
Hee-Sung Park ◽  
Young Sang Cho ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Modulation Detection

scholarly journals How Do Age and Hearing Loss Impact Spectral Envelope Perception?

2018 ◽  
Vol 61 (9) ◽  
pp. 2376-2385 ◽  
Author(s):  
Erol J. Ozmeral ◽  
Ann C. Eddins ◽  
David A. Eddins
Keyword(s):  
Hearing Loss ◽  
Spectral Resolution ◽  
Modulation Frequency ◽  
Normal Hearing ◽  
Frequency Resolution ◽  
Spectral Envelope ◽  
Detection Thresholds ◽  
Spectral Modulation ◽  
Modulation Detection ◽  
Moderate Hearing Loss

Purpose The goal was to evaluate the potential effects of increasing hearing loss and advancing age on spectral envelope perception. Method Spectral modulation detection was measured as a function of spectral modulation frequency from 0.5 to 8.0 cycles/octave. The spectral modulation task involved discrimination of a noise carrier (3 octaves wide from 400 to 3200 Hz) with a flat spectral envelope from a noise having a sinusoidal spectral envelope across a logarithmic audio frequency scale. Spectral modulation transfer functions (SMTFs; modulation threshold vs. modulation frequency) were computed and compared 4 listener groups: young normal hearing, older normal hearing, older with mild hearing loss, and older with moderate hearing loss. Estimates of the internal spectral contrast were obtained by computing excitation patterns. Results SMTFs for young listeners with normal hearing were bandpass with a minimum modulation detection threshold at 2 cycles/octave, and older listeners with normal hearing were remarkably similar to those of the young listeners. SMTFs for older listeners with mild and moderate hearing loss had a low-pass rather than a bandpass shape. Excitation patterns revealed that limited spectral resolution dictated modulation detection thresholds at high but not low spectral modulation frequencies. Even when factoring out (presumed) differences in frequency resolution among groups, the spectral envelope perception was worse for the group with moderate hearing loss than the other 3 groups. Conclusions The spectral envelope perception as measured by spectral modulation detection thresholds is compromised by hearing loss at higher spectral modulation frequencies, consistent with predictions of reduced spectral resolution known to accompany sensorineural hearing loss. Spectral envelope perception is not negatively impacted by advancing age at any spectral modulation frequency between 0.5 and 8.0 cycles/octave.

Spectral modulation detection training in older adults with hearing loss.

2009 ◽  
Vol 125 (4) ◽  
pp. 2633-2633
Author(s):  
Andrew T. Sabin ◽  
Cynthia A. Clark ◽  
David A. Eddins ◽  
Sumitrajit Dhar ◽  
Beverly A. Wright
Keyword(s):  
Older Adults ◽  
Hearing Loss ◽  
Spectral Modulation ◽  
Modulation Detection

scholarly journals Age-Related Changes in the Auditory Brainstem Response and Suprathreshold Processing of Temporal and Spectral Modulation

2019 ◽  
Vol 23 ◽  
pp. 233121651983961 ◽  
Author(s):  
John H. Grose ◽  
Emily Buss ◽  
Hollis Elmore
Keyword(s):  
Auditory Brainstem Response ◽  
Background Noise ◽  
Auditory Brainstem ◽  
Temporal Modulation ◽  
Amplitude Ratios ◽  
Spectral Modulation ◽  
Age Related ◽  
Brainstem Response ◽  
Modulation Detection ◽  
Hearing Difficulties

The purpose of this study was to determine whether cochlear synaptopathy can be shown to be a viable basis for age-related hearing difficulties in humans and whether it manifests as deficient suprathreshold processing of temporal and spectral modulation. Three experiments were undertaken evaluating the effects of age on (a) the auditory brainstem response as a function of level, (b) temporal modulation detection as a function of level and background noise, and (c) spectral modulation as a function of level. Across the three experiments, a total of 21 older listeners with near-normal audiograms and 29 young listeners with audiometrically normal hearing participated. The auditory brainstem response experiment demonstrated reduced Wave I amplitudes and concomitant reductions in the amplitude ratios of Wave I to Wave V in the older listener group. These findings were interpreted as consistent with an electrophysiological profile of cochlear synaptopathy. The temporal and spectral modulation detection experiments, however, provided no support for the hypothesis of compromised suprathreshold processing in these domains. This pattern of results suggests that even if cochlear synaptopathy can be shown to be a viable basis for age-related hearing difficulties, then temporal and spectral modulation detection paradigms are not sensitive to its presence.

Multi-spectral modulation detection of co-phasing errors for sparse-optical-synthetic-aperture systems

2016 ◽  
Author(s):  
Li Dong ◽  
Qi Peng ◽  
Haotong Ma ◽  
Zongliang Xie ◽  
Zhipeng Wang
Keyword(s):  
Synthetic Aperture ◽  
Spectral Modulation ◽  
Modulation Detection
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