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Reliability and Repeatability of the Speech Cue Profile.
Pamela Souza1,2, Richard Wright3, Frederick Gallun4,5
1Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL.
Journal of Speech, Language, and Hearing Research : JSLHR
|August 4, 2018
Summary
Listeners with sensorineural hearing loss use different acoustic cues for speech recognition. These individual speech cue patterns are stable over time, aiding in understanding speech variability not explained by audiograms.
Area of Science:
- Audiology
- Speech Science
- Neuroscience
Background:
- Speech recognition difficulties in sensorineural hearing loss (SHL) often exceed predictions from pure-tone audiometry.
- Previous research indicated SHL listeners utilize diverse acoustic cues (spectral vs. temporal) for speech identification.
Purpose of the Study:
- To replicate and verify the stability of speech cue-use patterns in a larger cohort of adults with SHL.
- To investigate individual differences in acoustic cue utilization for speech perception.
Main Methods:
- Adults with SHL completed a syllable identification task with synthetic speech stimuli.
- Spectral and temporal acoustic dimensions were systematically manipulated.
- Discriminant feature analysis quantified the contribution of spectral and temporal cues.
- Cue profiles were reassessed for stability over several months.
Main Results:
- When spectral information was static, most participants relied more on spectral cues.
- With dynamic spectral information, participants showed balanced use of spectral and temporal cues.
- Individual cue-use profiles demonstrated repeatability over time.
Conclusions:
- Listeners with SHL exhibit varied reliance on spectral and temporal acoustic cues for speech sound identification.
- These individual cue-use patterns are stable over time, contributing to understanding speech perception variability in SHL.
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