Wind Noise Sound Quality Preference and Claims Study
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: New wind noise canceller, Old wind noise canceller.
- Who it may be relevant to
- Registry conditions: Hearing Loss. Basic parameters: 18 years — 99 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Canada
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Overview
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.
Interventions
- Device New wind noise canceller
Updated wind noise canceller intended to improve wind noise attenuation and target signal fidelity compared to its predecessor. - Device Old wind noise canceller
Older version of the wind noise canceller
Primary outcome measures
- Overall preference sound quality attribute [Time frame: During a single 2-hour onsite study session]
Secondary outcome measures (4)
- Speech clarity sound quality attribute [Time frame: During a single 2-hour onsite study session]
- Listening comfort sound quality attribute [Time frame: During a single 2-hour onsite study session]
- Listening effort sound quality attribute [Time frame: During a single 2-hour onsite study session]
- Naturalness sound quality attribute [Time frame: During a single 2-hour onsite study session]
Eligibility criteria
Inclusion criteria
- Adults (18-99 years)
- Binaural, symmetric, sensorineural N2 (mild) to N5 (moderate-severe) hearing loss
- Fluent in English
Exclusion criteria
- Minors (< 18 years
- Normal hearing or hearing loss > N6 (severe)
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Canada · 1 center
- Sonova Canada Inc. — Kitchener
Identifiers
NCT: NCT07543770 · SRF-36731