Evaluation of a Frequency-Lowering Algorithm for Adults With High-Frequency Hearing Loss.
Trends in hearing
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Salorio-Corbetto, M., Baer, T., & Moore, B. (2017). Evaluation of a Frequency-Lowering Algorithm for Adults With High-Frequency Hearing Loss.. Trends in hearing, 21 2331216517734455. https://doi.org/10.1177/2331216517734455
The objective was to determine the effects of a frequency-lowering algorithm (frequency composition, Fcomp) on consonant identification, word-final /s, z/ detection, the intelligibility of sentences in noise, and subjective benefit, for people with high-frequency hearing loss, including people with dead regions (DRs) in the cochlea. A single-blind randomized crossover design was used. Performance with Bernafon Acriva 9 hearing aids was compared with Fcomp off and Fcomp on. Participants wore the hearing aids in each condition in a counterbalanced order. Data were collected after at least 8 weeks of experience with a condition. Outcome measures were audibility, scores from the speech perception tests, and scores from a questionnaire comparing self-perceived hearing ability with Fcomp off and Fcomp on. Ten adults with mild to severe high-frequency hearing loss (seven with extensive DRs, one with patchy or restricted DRs, and two with no DR) were tested. Fcomp improved the audibility of high-frequency sounds for 6 out of 10 participants. There was no overall effect of Fcomp on consonant identification, but the pattern of consonant confusions varied across conditions and participants. For word-final /s, z/ detection, performance was significantly better with Fcomp on than with Fcomp off. Questionnaire scores showed no differences between conditions. In summary, Fcomp improved word-final /s, z/ detection. No benefit was found for the other measures.
Humans, Hearing Loss, High-Frequency, Analysis of Variance, Single-Blind Method, Hearing Aids, Speech Intelligibility, Speech Perception, Algorithms, Aged, Aged, 80 and over, Outcome Assessment (Health Care), Male, Correction of Hearing Impairment
The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The first author was supported by Bernafon AG and received funding from Phonak in the past.
External DOI: https://doi.org/10.1177/2331216517734455
This record's URL: https://www.repository.cam.ac.uk/handle/1810/291270
Attribution 4.0 International
Licence URL: https://creativecommons.org/licenses/by/4.0/