NCT07543770

Brief Summary

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.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25

participants targeted

Target at below P25 for not_applicable

Timeline
1mo left

Started May 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress14%
May 2026May 2026

First Submitted

Initial submission to the registry

April 14, 2026

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 22, 2026

Completed
12 days until next milestone

Study Start

First participant enrolled

May 4, 2026

Completed
27 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2026

Last Updated

April 22, 2026

Status Verified

April 1, 2026

Enrollment Period

27 days

First QC Date

April 14, 2026

Last Update Submit

April 14, 2026

Conditions

Hearing Loss

Outcome Measures

Primary Outcomes (1)

  • Overall preference sound quality attribute

    Participants will complete an A-B paired-comparison listening task to assess subjective preference for overall preference between two hearing aid conditions. During testing, participants will listen to short audio recordings that vary in target signal, wind speed, and wind incidence angle. For each trial, participants will indicate which of the two recordings (A or B) is preferred overall. The outcome measure will be the proportion of "A preferred" versus "B preferred" responses aggregated across all trials and participants. Binary preference data will be analyzed using inferential statistics.

    During a single 2-hour onsite study session

Secondary Outcomes (4)

  • Speech clarity sound quality attribute

    During a single 2-hour onsite study session

  • Listening comfort sound quality attribute

    During a single 2-hour onsite study session

  • Listening effort sound quality attribute

    During a single 2-hour onsite study session

  • Naturalness sound quality attribute

    During a single 2-hour onsite study session

Study Arms (1)

Participant group

EXPERIMENTAL

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.

Device: New wind noise cancellerDevice: Old wind noise canceller

Interventions

New wind noise cancellerDEVICE

Updated wind noise canceller intended to improve wind noise attenuation and target signal fidelity compared to its predecessor.

Participant group
Old wind noise cancellerDEVICE

Older version of the wind noise canceller

Participant group

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults (18-99 years)
  • Binaural, symmetric, sensorineural N2 (mild) to N5 (moderate-severe) hearing loss
  • Fluent in English

You may not qualify if:

  • Minors (\< 18 years
  • Normal hearing or hearing loss \> N6 (severe)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sonova Canada Inc.

Kitchener, Ontario, N2E 1Y6, Canada

Location

MeSH Terms

Conditions

Hearing Loss

Condition Hierarchy (Ancestors)

Hearing DisordersEar DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Central Study Contacts

Jonathan M Vaisberg, PhD

CONTACT

905-745-6785jonathan.vaisberg@sonova.com

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Research Scientist

Study Record Dates

First Submitted

April 14, 2026

First Posted

April 22, 2026

Study Start

May 4, 2026

Primary Completion (Estimated)

May 31, 2026

Study Completion (Estimated)

May 31, 2026

Last Updated

April 22, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations

CA(1)