The Influence of Non-Linear Frequency Compression on the Perception of Timbre and Melody by Adults with a Moderate to Severe Hearing Loss

Abstract

Objective: To date, the main focus in frequency lowering hearing aid studies has been in relation to speech perception abilities. With improvements in hearing aid technology, interest in musical perception as a dimension that could improve hearing aid users’ quality of life, however, grew. The purpose of this study was to evaluate the influence of non-linear frequency compression (NFC) on music perception with the use of a self-compiled Music Perception Test (MPT). Design & Sample: A quasi-experimental research design was implemented to fit participants (n=40) with NFC hearing aids. Test data was obtained with the hearing aids with NFC inactive and active. Results: The use of NFC significantly improves hearing aid users’ perception of timbre and melody. Conclusion: The use of NFC can result in hearing users perceiving music more positively and does not influence music perception negatively.