Investigating the DNN Noise Reduction Feature in Phonak Hearing Aids Using Ecological Momentary Assessment

Stopped early · Not applicable

Conditions studied: Hearing Loss

In brief

The goal of this interventional study is to evaluate the DNN Noise reduction feature of Phonak hearing aids in adults with moderate to moderate severe hearing loss. The main questions it aims to answer are: Do participants correctly identify significantly more words on the AZBio Sentence Test when using Phonak's DNN NR feature than when using Competitor device A in a lab setting? Do participants subjectively rate the speech clarity, ease of listening, and listening confidence higher when using Phonak's DNN feature than when using Competitor device A in both a lab setting and a real-world cafe setting? Do participants have an overall preference for the Phonak device over the Competitor device A in a real-world cafe setting? Participants will be fit with both the Phonak device and a Competitor device A in the lab. They will be given the AZBio Sentence test and repeat as many words as they can in a simulated noisy environment. Following the lab visit, participants will meet in a group with three other conversation partners in a real-world setting and asked to complete subjective questionnaires during the visit.

Key facts

Study ID

NCT07526428

Run by

Sonova AG

People needed

21

Starts

2026-04-09

Expected to finish

2026-04-19

Last updated by the study team

2026-05-29

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adults (18+ years old) with audiograms within fitting range of the hearing aid (e.g., moderate to severe sensorineural hearing losses {N3-N5}) and with hearing aid experience will be recruit-ed for this study.
• Ability to fill out questionnaires
• No known cognitive issues.
• Fluent in English, ability to read and write in English.
• Informed consent documented by signature.
• Willingness to wear binaural receiver-in-canal (RIC) devices with domes.
• Willingness to meet up outside of the lab at a local café with two other consented research participants.

You may not qualify if…

• Contraindications to medical device (MD) in this study: known hypersensitivity or allergy to investigational product/domes.
• Limited mobility/not being able to come to scheduled appoint-ments.
• Limited ability to describe listening impressions/experiences and the use of the hearing aid.
• Known psychological disorders.

Where it is running

• Phonak Audiology Research Center — Aurora, Illinois, United States

Full record on ClinicalTrials.gov

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