On the use of masking to simulate the effects of sensorineural hearing loss on speech recognition

1985 ◽  
Vol 77 (S1) ◽  
pp. S68-S68
Author(s):  
Larry Humes ◽  
Donald D. Dirks ◽  
Theodore S. Bell ◽  
Gail E. Kincaid
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Sensorineural Hearing Loss ◽  
Sensorineural Hearing

scholarly journals Speech recognition in individuals with sensorineural hearing loss

2016 ◽  
Vol 82 (3) ◽  
pp. 334-340 ◽  
Author(s):  
Adriana Neves de Andrade ◽  
Maria Cecilia Martinelli Iorio ◽  
Daniela Gil
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Sensorineural Hearing Loss ◽  
Sensorineural Hearing

scholarly journals Improvement of Speech Recognition with Zero-Crossing in Patients with Sensorineural Hearing Loss.

1995 ◽  
Vol 88 (7) ◽  
pp. 851-855
Author(s):  
Koji MIYATA ◽  
Kazuhiko SHOJI ◽  
Hisayoshi KOJIMA ◽  
Shigeru HIRANO ◽  
Shogo SHINHOARA ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Zero Crossing

scholarly journals Effects of Various Extents of High-Frequency Hearing Loss on Speech Recognition and Gap Detection at Low Frequencies in Patients with Sensorineural Hearing Loss

2017 ◽  
Vol 2017 ◽  
pp. 1-9
Author(s):  
Bei Li ◽  
Yang Guo ◽  
Guang Yang ◽  
Yanmei Feng ◽  
Shankai Yin
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Sensorineural Hearing Loss ◽  
High Frequency ◽  
Hearing Threshold ◽  
Sensorineural Hearing ◽  
Gap Detection ◽  
Detection Thresholds ◽  
Low Frequencies ◽  
Compressed Speech

This study explored whether the time-compressed speech perception varied with the degree of hearing loss in high-frequency sensorineural hearing loss (HF SNHL) individuals. 65 HF SNHL individuals with different cutoff frequencies were recruited and further divided into mildly, moderately, and/or severely affected subgroups in terms of the averaged thresholds of all frequencies exhibiting hearing loss. Time-compressed speech recognition scores under both quiet and noisy conditions and gap detection thresholds within low frequencies that had normal thresholds were obtained from all patients and compared with data from 11 age-matched individuals with normal hearing threshold at all frequencies. Correlations of the time-compressed speech recognition scores with the extents of HF SNHL and with the 1 kHz gap detection thresholds were studied across all participants. We found that the time-compressed speech recognition scores were significantly affected by and correlated with the extents of HF SNHL. The time-compressed speech recognition scores also correlated with the 1 kHz gap detection thresholds except when the compression ratio of speech was 0.8 under quiet condition. Above all, the extents of HF SNHL were significantly correlated with the 1 kHz gap thresholds.

Masking of Speech in Young and Elderly Listeners With Hearing Loss

1994 ◽  
Vol 37 (3) ◽  
pp. 655-661 ◽  
Author(s):  
Pamela E. Souza ◽  
Christopher W. Turner
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Sensorineural Hearing Loss ◽  
Background Noise ◽  
Normal Hearing ◽  
Sensorineural Hearing ◽  
Masking Noise ◽  
Speech Spectrum ◽  
Specific Factors ◽  
High Pass

This study examined the contributions of various properties of background noise to the speech recognition difficulties experienced by young and elderly listeners with hearing loss. Three groups of subjects participated: young listeners with normal hearing, young listeners with sensorineural hearing loss, and elderly listeners with sensorineural hearing loss. Sensitivity thresholds up to 4000 Hz of the young and elderly groups of listeners with hearing loss were closely matched, and a high-pass masking noise was added to minimize the contributions of high-frequency (above 4000 Hz) thresholds, which were not closely matched. Speech recognition scores for monosyllables were obtained in the high-pass noise alone and in three noise backgrounds. The latter consisted of high-pass noise plus one of three maskers: speechspectrum noise, speech-spectrum noise temporally modulated by the envelope of multi-talker babble, and multi-talker babble. For all conditions, the groups with hearing impairment consistently scored lower than the group with normal hearing. Although there was a trend toward poorer speech-recognition scores as the masker condition more closely resembled the speech babble, the effect of masker condition was not statistically significant. There was no interaction between group and condition, implying that listeners with normal hearing and listeners with hearing loss are affected similarly by the type of background noise when the long-term spectrum of the masker is held constant. A significant effect of age was not observed. In addition, masked thresholds for pure tones in the presence of the speech-spectrum masker were not different for the young and elderly listeners with hearing loss. These results suggest that, for both steady-state and modulated background noises, difficulties in speech recognition for monosyllables are due primarily, and perhaps exclusively, to the presence of sensorineural hearing loss itself, and not to age-specific factors.

Efficacy of Hearing-Aid Based Telephone Strategies for Listeners with Moderate-to-Severe Hearing Loss

2013 ◽  
Vol 24 (01) ◽  
pp. 059-070 ◽  
Author(s):  
Erin M. Picou ◽  
Todd A. Ricketts
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Sensorineural Hearing Loss ◽  
Hearing Aid ◽  
Recognition Performance ◽  
Sensorineural Hearing ◽  
Subjective Ratings ◽  
Severe Hearing Loss ◽  
Acoustic Coupling ◽  
Wireless Routing

Background: Understanding speech over the telephone when listening in noisy environments may present a significant challenge for listeners with moderate-to-severe hearing loss. Purpose: The purpose of this study was to compare speech recognition and subjective ratings across several hearing aid-based telephone listening strategies for individuals with moderate-to-severe sensorineural hearing loss. Research Design: Speech recognition and subjective ratings were evaluated for a simulated telephone signal. The strategies evaluated included acoustic telephone, unilateral telecoil, unilateral wireless streaming, and bilateral wireless streaming. Participants were seated in a noisy room for all evaluations. Study Sample: Eighteen adults, aged 49–88 yr, with moderate-to-severe sensorineural hearing loss participated. Data Collection and Analysis: Speech recognition scores on the Connected Speech Test were converted to rationalized arcsine units and analyzed using analysis of variance testing and Tukey post hoc analyses. Subjective ratings of ease and comfort were also analyzed in this manner. Results: Speech recognition performance was poorest with acoustic coupling to the telephone and best with bilateral wireless routing. Telecoil coupling resulted in better speech recognition performance than acoustic coupling, but was significantly poorer than bilateral wireless routing. Furthermore, unilateral wireless routing and telecoil coupling generally led to similar speech recognition performance, except in lower-level background noise conditions, for which unilateral routing resulted in better performance than the telecoil. Conclusions: For people with moderate-to-severe sensorineural hearing loss, acoustic telephone listening with a hearing aid may not lead to acceptable performance in noise. Although unilateral routing options (telecoil and wireless streaming) improved performance, speech recognition performance and subjective ratings of ease and comfort were best when bilateral wireless routing was used. These results suggest that wireless routing is a potentially beneficial telephone listening strategy for listeners with moderate-to-severe hearing loss who are fitted with limited venting if the telephone signal is routed to both ears. Unilateral wireless routing may provide similar benefits to traditional unilateral telecoil. However, the newer wireless systems may have the advantage for some listeners in that they do not include some of the positioning constraints associated with telecoil use.

A Procedure for Quantifying the Effects of Noise on Speech Recognition

1982 ◽  
Vol 47 (2) ◽  
pp. 114-123 ◽  
Author(s):  
Donald D. Dirks ◽  
Donald E. Morgan ◽  
Judy R. Dubno
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Sensorineural Hearing Loss ◽  
Recognition Performance ◽  
Adaptive Strategies ◽  
Adaptive Strategy ◽  
Practical Method ◽  
Sensorineural Hearing ◽  
Speech Presentation

This paper describes the results of two experiments in which speech recognition performance was determined for listeners with sensorineural hearing loss, while listening in babble. Adaptive strategies were used in both experiments to measure the signal-to-babble ratio required to achieve a preselected level of performance at several speech presentation levels encountered in normal conversation or when listening through an amplifier system. The results suggest that the proposed adaptive strategy may provide a practical method by which the relative effects of competition on speech recognition may be quantified in an individual listener.

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