New Wind Noise Canceller for Hearing Loss
(WB Trial)
What You Need to Know Before You Apply
What is the purpose of this trial?
Claims evidence is required for a new Wind Noise Canceller (WNC) algorithm.
Wind noise is not sound in the classic sense, as it does not correspond to pressure waves moving through the air. However, because the microphone membranes are deflected by the wind noise, the microphones translates them into a sound signal. Since the pressure fluctuations are small in size, this wind noise signal is uncorrelated between the two HI microphones (correlation decreases with increasing microphone distance), creating bothersome sounds at low and very low frequencies. Historically, wind noise cancellers have been applied to make wind noise less bothersome. However, target signal (i.e. speech) sound fidelity can become compromised as a biproduct. Therefore, an updated wind noise canceller has been proposed to improve wind noise attenuation and target signal fidelity compared to the previous iteration. Informal exploratory testing by normal hearing Sonova employees have identified the new wind noise canceller iteration to improve sound quality ratings with some dependencies on (1) wind speed, (2) wind angle and (3) target signal. Therefore, this study will aim to produce sound quality data showing a benefit for the new wind noise canceller compared to the older version for the purpose of claim substantiation.
Are You a Good Fit for This Trial?
Inclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Testing
Participants will listen to recorded scenes of target signals in a wind tunnel, with varied wind speed and incidence angle, using old and new versions of the wind noise canceller.
Follow-up
Participants are monitored for any feedback or additional data collection after the testing session.
What Are the Treatments Tested in This Trial?
How Is the Trial Designed?
1
Treatment groups
Experimental Treatment
Participants will listen to recorded scenes of target signals (speech, environmental sounds) in a wind tunnel, in which wind speed and incidence angle will be varied, recorded using the old and new versions of the wind noise canceller. Condition order is randomized between participants and masked from participants and experimenters.
Find a Clinic Near You
Who Is Running the Clinical Trial?
Jonathan Vaisberg
Lead Sponsor
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