DescriptionPlomp (1986) described the consequences of a hearing impairment in speech communication as the sum of two components: attenuation and distortion. Recent studies have shown that the sensitivity to spectro-temporal modulations (STM) might be linked to speech intelligibility in noise, suggesting that supra-threshold, or “internal”, distortions would affect both speech and STM perception similarly. Furthermore, a reduced sensitivity to STM may also affect a listener’s preference for a hearing aid (HA) compensation strategy. Here, speech intelligibility and STM sensitivity were measured in 14 hearing-impaired (HI) listeners. One group of the listeners (group A) showed an inability to detect STM, whereas the other listeners (group B) exhibited similar thresholds as listeners from a control group with young normal-hearing (NH) listeners. The three groups participated in a perceptual evaluation experiment using multi-stimuli comparisons (MUSHRA). The audio files were processed by a HA simulator fitted to the individual hearing loss, and the performance was rated in terms of four attributes: clarity, comfort, preference and listening effort. A principal component analysis showed that clarity and preference were correlated in group A whereas comfort and listening effort were correlated in group B. The classification of HI listeners in auditory profiles might be valuable for efficient HA fitting.
|Period||22 Aug 2019|
|Event title||International Symposium on Auditory and Audiological Research: Auditory Learning in Biological and Artificial Systems|