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Published on: March 24, 2023
Impact of Noise Reduction Algorithm in Cochlear Implant Processing on Music Enjoyment
Gavriel D Kohlberg1, Dean M Mancuso, Brianna M Griffin
1Columbia University Cochlear Implant Center, Department of Otolaryngology-Head and Neck Surgery, Columbia University College of Physicians and Surgeons, New York, New York.
Noise reduction algorithms (NRA) do not improve music enjoyment for cochlear implant (CI) users or normal-hearing individuals. Simplifying music by reducing instruments enhances enjoyment for both groups.
Area of Science:
- Audiology
- Speech Processing
- Music Perception
Background:
- Noise reduction algorithms (NRA) improve speech perception for cochlear implant (CI) users.
- The impact of NRA on music enjoyment in CI users is not well understood.
Purpose of the Study:
- To evaluate the effect of NRA on music enjoyment in normal-hearing (NH) adults and CI listeners.
- To explore music complexity as a factor in music enjoyment.
Main Methods:
- Prospective analysis involving NH adults (N=16) and CI listeners (N=9).
- Participants rated music excerpts (original and simplified versions) on pleasantness, musicality, and naturalness.
- NH listeners used CI simulation; CI listeners used their devices with and without NRA.
Main Results:
- Reducing musical instrument count significantly increased pleasantness and naturalness for both NH and CI groups (p<0.05).
- NRA did not significantly affect music enjoyment (pleasantness, musicality, naturalness) for either group (p>0.05).
- These findings held true for original and simplified music segments.
Conclusions:
- NRA does not enhance music enjoyment in CI listeners or NH individuals using CI simulation.
- Speech processing enhancements do not automatically translate to improved music enjoyment.
- Reducing music complexity shows potential for improving music enjoyment and warrants further investigation.
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