Study Stopped
No reliable differences across conditions, unacceptable test-retest reliability
Compression Headphone Study
Using Headphone Presentation to Investigate Compression Strategy Modifications in Hearing Aids for Moderate-to-severe Hearing Loss
1 other identifier
interventional
12
1 country
1
Brief Summary
The stimuli consist of speech in quiet, speech in noise, reverberant speech, and music recorded with different hearing aid settings, post-processed for headphone presentation and incorporated in an online sound survey. Participants will receive tablets and headphones to conduct a sound quality rating at home. The survey will involve a training session and within-subject repeated measures. Stimuli presentation will be randomized by sound quality rating tool.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started May 2021
Shorter than P25 for not_applicable
1 active site
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
First Submitted
Initial submission to the registry
May 4, 2021
CompletedStudy Start
First participant enrolled
May 10, 2021
CompletedFirst Posted
Study publicly available on registry
May 12, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 2, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
September 2, 2021
CompletedResults Posted
Study results publicly available
August 13, 2025
CompletedAugust 13, 2025
April 1, 2024
4 months
May 4, 2021
June 9, 2023
August 11, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Sound Quality Rating
Participants moved through a self-guided, double-blinded sound survey which presented sound samples of all hearing aid conditions (see Arms/Groups for conditions) and asked participants to rate the sound quality dimensions on a scale. The rating dimensions and scales were based on a sound quality rating guidance document by Delta Labs (Danmark) ranging from 0 to 100 with step sizes of 1 and descriptive markers at 0 (worst), 20, 40, 60, 80 and 100 (best) depending on the dimension (Reverberation (only assessed for Speech in Quiet and Reverberant Speech), Sound Source Localization, Sound Source Separation, and Timbral Balance). Overall Preference was implemented as a ranking according to the 5-point Mean Opinion Score (bad (1), poor (2), fair (3), good (4), excellent (5); MOS, International Telecommunication Union, 1996).
1 hour
Study Arms (5)
Hearing aid 1 default amplification strategy
EXPERIMENTALHearing aid 1 default amplification strategy: A receiver-in-canal (RIC) hearing aid developed by the study sponsor used with the default settings as specified in the study sponsor's fitting software.
Hearing aid 2
EXPERIMENTALHearing aid 2: A receiver-in-canal (RIC) hearing aid developed by the another hearing aid manufacturer used with the default settings as specified in the manufacturer's fitting software.
Hearing aid 1 strategy 1
EXPERIMENTALHearing aid 1 strategy 1: A receiver-in-canal (RIC) hearing aid developed by the study sponsor used with a modified compression strategy that is expected to improve sound quality.
Hearing aid 1 strategy 2
EXPERIMENTALHearing aid 1 strategy 2: A receiver-in-canal (RIC) hearing aid developed by the study sponsor used with a modified compression strategy that is expected to improve sound quality.
unaided
NO INTERVENTIONUnaided recording to be used for normalization of rating results.
Interventions
Each participant will listen to sound samples via headphones. Sound samples have been recorded with a hearing aid that was set to each participant's individual hearing loss and different amplification strategies, and an unaided reference. Participants will be asked to rate different aspects of sound quality while listening to the different sound samples.
Eligibility Criteria
You may qualify if:
- Adults (18-99 years) with ≥3 months hearing aid experience
- binaural, symmetric, sensorineural N3 to N4 hearing loss
- able to use Android interface and receive a video call on phone/computer
- fluent in English
You may not qualify if:
- children/teenagers
- normal hearing or hearing loss exceeding N4 by 10dB
- cannot wear over-ear headphones
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sonova AGlead
- Sonova Canada Inc.collaborator
Study Sites (1)
Sonova Innovation Centre Toronto
Mississauga, Ontario, L5L1J3, Canada
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Jinyu Qian
- Organization
- Sonova Canada Inc.
Study Officials
- PRINCIPAL INVESTIGATOR
Jinyu Qian, PhD
Sonova Canada Inc.
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Masking Details
- The acoustic output of the different devices had been recorded and the recordings have been presented in random order (random order created by the sound survey algorithm) to the participants in a digital sound survey, so neither the researcher nor the participant knew which recording the participant was listening to when rating.
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 4, 2021
First Posted
May 12, 2021
Study Start
May 10, 2021
Primary Completion
September 2, 2021
Study Completion
September 2, 2021
Last Updated
August 13, 2025
Results First Posted
August 13, 2025
Record last verified: 2024-04
Data Sharing
- IPD Sharing
- Will not share