scholarly journals Frequency resolution and temporal resolution in sensorineural hearing‐impaired listeners

1980 ◽  
Vol 68 (S1) ◽  
pp. S28-S28
Author(s):  
D. A. Nelson
Keyword(s):  
Temporal Resolution ◽  
Hearing Impaired ◽  
Sensorineural Hearing ◽  
Frequency Resolution

Limiting Spectral Resolution in Speech for Listeners With Sensorineural Hearing Loss

1999 ◽  
Vol 42 (4) ◽  
pp. 773-784 ◽  
Author(s):  
Christopher W. Turner ◽  
Siu-Ling Chi ◽  
Sarah Flock
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Spectral Resolution ◽  
Present Experiment ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Sensorineural Hearing ◽  
Frequency Resolution ◽  
Limiting Factor ◽  
Speech Condition

Consonant recognition was measured as a function of the degree of spectral resolution of the speech stimulus in normally hearing listeners and listeners with moderate sensorineural hearing loss. Previous work (Turner, Souza, and Forget, 1995) has shown that listeners with sensorineural hearing loss could recognize consonants as well as listeners with normal hearing when speech was processed to have only one channel of spectral resolution. The hypothesis tested in the present experiment was that when speech was limited to a small number of spectral channels, both normally hearing and hearing-impaired listeners would continue to perform similarly. As the stimuli were presented with finer degrees of spectral resolution, and the poorer-than-normal spectral resolving abilities of the hearing-impaired listeners became a limiting factor, one would predict that the performance of the hearing-impaired listeners would then become poorer than the normally hearing listeners. Previous research on the frequency-resolution abilities of listeners with mild-to-moderate hearing loss suggests that these listeners have critical bandwidths three to four times larger than do listeners with normal hearing. In the present experiment, speech stimuli were processed to have 1, 2, 4, or 8 channels of spectral information. Results for the 1-channel speech condition were consistent with the previous study in that both groups of listeners performed similarly. However, the hearing-impaired listeners performed more poorly than the normally hearing listeners for all other conditions, including the 2-channel speech condition. These results would appear to contradict the original hypothesis, in that listeners with moderate sensorineural hearing loss would be expected to have at least 2 channels of frequency resolution. One possibility is that the frequency resolution of hearing-impaired listeners may be much poorer than previously estimated; however, a subsequent filtered speech experiment did not support this explanation. The present results do indicate that although listeners with hearing loss are able to use the temporal-envelope information of a single channel in a normal fashion, when given the opportunity to combine information across more than one channel, they show deficient performance.

Understanding Excessive SNR Loss in Hearing-Impaired Listeners

2013 ◽  
Vol 24 (04) ◽  
pp. 258-273 ◽  
Author(s):  
Ken W. Grant ◽  
Therese C. Walden
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Frequency Selectivity ◽  
Hearing Impaired ◽  
Sensorineural Hearing ◽  
Frequency Resolution ◽  
Control Group ◽  
Temporal Acuity ◽  
Speech In Noise ◽  
Noise Test

Background: Traditional audiometric measures, such as pure-tone thresholds or unaided word-recognition in quiet, appear to be of marginal use in predicting speech understanding by hearing-impaired (HI) individuals in background noise with or without amplification. Suprathreshold measures of auditory function (tolerance of noise, temporal and frequency resolution) appear to contribute more to success with amplification and may describe more effectively the distortion component of hearing. However, these measures are not typically measured clinically. When combined with measures of audibility, suprathreshold measures of auditory distortion may provide a much more complete understanding of speech deficits in noise by HI individuals. Purpose: The primary goal of this study was to investigate the relationship among measures of speech recognition in noise, frequency selectivity, temporal acuity, modulation masking release, and informational masking in adult and elderly patients with sensorineural hearing loss to determine whether peripheral distortion for suprathreshold sounds contributes to the varied outcomes experienced by patients with sensorineural hearing loss listening to speech in noise. Research Design: A correlational study. Study Sample: Twenty-seven patients with sensorineural hearing loss and four adults with normal hearing were enrolled in the study. Data Collection and Analysis: The data were collected in a sound attenuated test booth. For speech testing, subjects' verbal responses were scored by the experimenter and entered into a custom computer program. For frequency selectivity and temporal acuity measures, subject responses were recorded via a touch screen. Simple correlation, step-wise multiple linear regression analyses and a repeated analysis of variance were performed. Results: Results showed that the signal-to-noise ratio (SNR) loss could only be partially predicted by a listener's thresholds or audibility measures such as the Speech Intelligibility Index (SII). Correlations between SII and SNR loss were higher using the Hearing-in-Noise Test (HINT) than the Quick Speech-in-Noise test (QSIN) with the SII accounting for 71% of the variance in SNR loss for the HINT but only 49% for the QSIN. However, listener age and the addition of suprathreshold measures improved the prediction of SNR loss using the QSIN, accounting for nearly 71% of the variance. Conclusions: Two standard clinical speech-in-noise tests, QSIN and HINT, were used in this study to obtain a measure of SNR loss. When administered clinically, the QSIN appears to be less redundant with hearing thresholds than the HINT and is a better indicator of a patient's suprathreshold deficit and its impact on understanding speech in noise. Additional factors related to aging, spectral resolution, and, to a lesser extent, temporal resolution improved the ability to predict SNR loss measured with the QSIN. For the HINT, a listener's audibility and age were the only two significant factors. For both QSIN and HINT, roughly 25–30% of the variance in individual differences in SNR loss (i.e., the dB difference in SNR between an individual HI listener and a control group of NH listeners at a specified performance level, usually 50% word or sentence recognition) remained unexplained, suggesting the need for additional measures of suprathreshold acuity (e.g., sensitivity to temporal fine structure) or cognitive function (e.g., memory and attention) to further improve the ability to understand individual variability in SNR loss.

Temporal resolution in sensorineural hearing‐impaired listeners

1987 ◽  
Vol 81 (3) ◽  
pp. 709-720 ◽  
Author(s):  
David A. Nelson ◽  
Richard L. Freyman
Keyword(s):  
Temporal Resolution ◽  
Hearing Impaired ◽  
Sensorineural Hearing

Vowel Confusions of Hearing-Impaired Listeners under Reverberant and Nonreverberant Conditions

1985 ◽  
Vol 50 (2) ◽  
pp. 126-131 ◽  
Author(s):  
Anna K. Nabelek ◽  
Tomasz R. Letowski
Keyword(s):  
Hearing Impaired ◽  
Sensorineural Hearing ◽  
Vowel Duration ◽  
Error Patterns ◽  
Formant Frequencies ◽  
Test Conditions ◽  
English Vowels

The effects of reverberation on the perception of vowels and diphthongs were evaluated using 10 subjects with moderate sensorineural hearing losses. Stimuli were 15 English vowels and diphthongs, spoken between/b/and/t/and recorded in a carrier sentence. The test was recorded without and with reverberation (T = 1.2 s). Although vowel confusions occurred in both test conditions, the number of vowels and diphthongs affected and the total number of errors made were significantly greater under the reverberant condition. The results indicated that the perception of vowels by hearing-impaired listeners can be influenced substantially by reverberation. Errors for vowels in reverberation seemed to be related to the overestimation of vowel duration and to a tendency to perceive the pitch of the formant frequencies as being higher than in vowels without reverberation. Error patterns were somewhat individualized among subjects.

Effect of Age on Prediction of Hearing Loss with the Bivariate-Plotting Procedure

1984 ◽  
Vol 27 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Shlomo Silman ◽  
Carol Ann Silverman ◽  
Theresa Showers ◽  
Stanley A. Gelfand
Keyword(s):  
Hearing Loss ◽  
Hearing Impairment ◽  
Predictive Accuracy ◽  
Normal Hearing ◽  
Hearing Impaired ◽  
Sensorineural Hearing ◽  
Line Segments ◽  
Bivariate Plot ◽  
Accuracy Of Prediction ◽  
Effect Of Age

The effect of age on accuracy of prediction of hearing impairment with the bivariate-plotting procedure was investigated in 72 normal-hearing subjects aged 20–69 years and in 86 sensorineural hearing-impaired subjects aged 20–83 years. The predictive accuracy with the bivariate-plotting procedure improved markedly when the data from subjects over 44 years of age were excluded from the bivariate plot. The predictive accuracy improved further when the construction of the line segments in the traditional bivariate plot was modified.

Relation between Frequency Selectivity and Speech Perception Following Glycerol-Induced Cochlear Changes

1985 ◽  
Vol 50 (4) ◽  
pp. 372-377 ◽  
Author(s):  
Patricia G. Stelmachowicz ◽  
Dawna E. Johnson ◽  
Lori L. Larson ◽  
Patrick E. Brookhouser
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Sensorineural Hearing Loss ◽  
Frequency Selectivity ◽  
Auditory Threshold ◽  
Sensorineural Hearing ◽  
Frequency Resolution ◽  
Intersubject Variability ◽  
Tuning Curves ◽  
Clear Relation

Changes in auditory threshold, psychophysical tuning curves, and speech perception (in both quiet and noise) were monitored over a 3-hr period following the ingestion of glycerol. All listeners had sensorineural hearing loss secondary to Menière's disease. Findings were characterized by large intersubject variability and in general did not show a clear relation between changes in threshold, frequency resolution, and speech perception.

Perception of critical‐band adjusted vowel continua by sensorineural hearing‐impaired listeners

1984 ◽  
Vol 76 (S1) ◽  
pp. S80-S81
Author(s):  
B. Espinoza‐Varas ◽  
D. Jamieson ◽  
Judy Wahn
Keyword(s):  
Critical Band ◽  
Hearing Impaired ◽  
Sensorineural Hearing
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