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Impact of frequency compression on music perception
Bruna S S Mussoi1, Ruth A Bentler
1Department of Communication Sciences and Disorders, University of Iowa , Iowa City , USA.
International Journal of Audiology
|March 28, 2015
Summary
Listeners generally prefer less frequency compression in hearing aids, especially those with music training or normal hearing. Mild compression may not significantly impair sound quality.
Area of Science:
- Auditory Perception
- Hearing Aid Technology
- Music Cognition
Background:
- Frequency compression is a hearing aid feature aimed at improving audibility of high-frequency sounds.
- The impact of frequency compression on music perception is not fully understood.
- Music training and hearing status may influence preferences for hearing aid processing.
Purpose of the Study:
- To investigate the effect of varying frequency compression levels on music perception.
- To examine how prior music training and hearing status moderate these effects.
- To test the hypothesis that less compression is preferred, particularly by musically trained individuals.
Main Methods:
- A paired-comparison listening test was employed.
- Participants (n=57) with normal hearing or hearing loss, and with or without music training, evaluated music passages processed with different frequency compression settings.
- Preference and preference strength were recorded.
Main Results:
- A general preference for reduced frequency compression was observed across participants.
- Individuals with music training and normal hearing showed a stronger preference for less compression compared to their counterparts.
- Variability in preference was noted for default hearing loss settings and no compression.
Conclusions:
- Less frequency compression is generally preferred for music perception.
- Music training and normal hearing status amplify the preference for reduced compression.
- Mild levels of frequency compression may be acceptable and not detrimental to perceived sound quality.
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