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Assessment of Novel Sound Changing Principles in Hearing Instruments to Determine Their Application - 2019_33

NCT04167735 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 18

Last updated 2019-12-16

No results posted yet for this study

Summary

Participants will complete a listening task in a simulated reverberant environment. Participants are seated and instructed to look at a fixation cross while a sentence is played. Sentences are varied with respect to their speech rate. While listening to the sentences participant's pupil dilation is measured by means of pupillometry which is a non-invasive physiological measurement. Participants are asked to repeat back the sentences loud. At fixed intervals, subjective ratings are collected by asking participants to move an on-screen slider using a game controller. Two hearing aid programs will be compared, one intended for speech perception in quiet and the other to reduce reverberation in reverberant environments. The study is designed as factorial, with 2 speech rates, 2 room simulations and 2 hearing aid programs. The same conditions will be re-tested once after a minimum of one day. A pilot study will determine appropriate speech rates by applying a different factorial, with 4 speech rates, 2 room simulations and 1 hearing aid program. Participants complete all conditions (within-subjects) in one experimental sessions that lasts around 1 hour.

Conditions

Interventions

DEVICE

Hearing Aid without Reverberation Canceller (RevC).

Each participant will be fitted with the 2 different Sound Changing principles on the same hearing aid, saved to 2 manual programs (ensures exact same hearing loss compensation for each intervention). Reverberation Canceller principle is a sound processing algorithm to remove reverberation from a speech signal to improve the speech intelligibility and comfort. The active comparator condition is without Reverberation Canceller principle enabled.

DEVICE

Hearing Aid Reverberation Canceller enabled (RevC_1)

Each participant will be fitted with the 2 different Sound Changing principles on the same hearing aid, saved to 2 manual programs (ensures exact same hearing loss compensation for each intervention). Reverberation Canceller principle is a sound processing algorithm to remove reverberation from a speech signal to improve the speech intelligibility and comfort. The experimental condition applies the Reverberation Canceller and is predicted to provide a benefit in reverberant room simulations.

Sponsors & Collaborators

  • Sonova AG

    lead INDUSTRY

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
99 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-10-22
Primary Completion
2019-12-12
Completion
2019-12-12

Countries

  • Switzerland

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04167735 on ClinicalTrials.gov