Hearing-aid settings in connection to supra-threshold auditory processing deficits

Sanchez Lopez, R. (Guest lecturer), Dau, T. (Guest lecturer), Morten Løve Jepsen (Guest lecturer)

Activity: Talks and presentationsConference presentations

Description

Plomp (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.
Period22 Aug 2019
Held atInternational Symposium on Auditory and Audiological Research
Event typeConference
LocationNyborg, Denmark