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Effects of Frequency-Composition Algorithm and Phoneme-Based Auditory Training in Older Hearing Aid Users.
Mikyung Lee1,2, Jae Hee Lee1,3
1Department of Audiology and Speech Language Pathology, Hallym University of Graduate Studies, Seoul, Korea.
Journal of Audiology & Otology
|November 6, 2024
Summary
Frequency-lowering (FL) algorithms can improve hearing aid effectiveness. Auditory training with frequency composition (Fcomp) activation enhanced speech recognition and sound quality for older hearing aid users, but did not improve overall satisfaction.
Area of Science:
- Audiology
- Hearing Science
- Speech Processing
Background:
- Frequency-lowering (FL) algorithms shift high-frequency sounds to improve audibility.
- Previous findings on FL algorithm effectiveness have been mixed.
- Frequency composition (Fcomp) is a specific FL technique.
Purpose of the Study:
- To evaluate if activating Fcomp enhances objective and subjective auditory outcomes.
- To determine if auditory training combined with Fcomp provides perceptual benefits for older hearing aid users.
Main Methods:
- Two experiments were conducted with 12 older hearing aid users.
- Experiment I: 4-week adaptation to Fcomp, followed by evaluation.
- Experiment II: 8-week phoneme-based auditory training with Fcomp vs. non-trained controls.
Main Results:
- Passive Fcomp adaptation did not improve speech recognition or sound quality.
- Active phoneme-based training with Fcomp enhanced consonant/word recognition and speech quality ratings.
- Non-trained controls using Fcomp showed no significant differences.
Conclusions:
- Phoneme-based auditory training helps older hearing aid users relearn frequency-lowered sounds and reduce phonetic confusion.
- Analytical training with Fcomp did not transfer to improved sentence recognition or overall hearing aid satisfaction.
