Compression Headphone Study

Not Applicable

Terminated

• Conditions: Hearing Loss

• Registration Number: NCT04882709
• Lead Sponsor: Sonova AG

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.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-05-04
• Study Start: 2021-05-10
• Study First Submitted QC: 2021-05-11
• Study First Posted: 2021-05-12
• Primary Completion: 2021-09-02
• Study Completion: 2021-09-02
• Results First Submitted: 2023-06-09
• Status Verified: 2024-04
• Results First Submitted QC: 2025-08-11
• Last Update Submitted: 2025-08-11
• Results First Posted: 2025-08-13
• Last Update Posted: 2025-08-13

Recruitment & Eligibility

• Status: TERMINATED
• Sex: All
• Target Recruitment: 12

Inclusion Criteria

• 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

Exclusion Criteria

• children/teenagers
• normal hearing or hearing loss exceeding N4 by 10dB
• cannot wear over-ear headphones

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Primary Outcome Measures

Name	Time	Method
Sound Quality Rating	1 hour	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).

Trial Locations

Locations (1)

Sonova Innovation Centre Toronto; 🇨🇦 Mississauga, Ontario, Canada