Removing Background Talker Noise for Cochlear Implant Users

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

EARLY_PHASE1

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-04-25

Study Completion Date

2023-03-31

Brief Summary

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When hearing-impaired listeners are properly aided with a hearing aid (HA) or cochlear implant (CI), they are often able to comfortably maintain a conversation in quiet environments. However, in group environments, such as a large family dinner, restaurant, or other environment where multiple people are talking simultaneously, hearing-impaired listeners have great difficulty participating in conversations and frequently withdraw or avoid the situation. As such, it would be highly beneficial to implement an algorithm into HAs or CIs to remove background talkers ("babble") from the signal to reduce listening effort for the hearing-impaired listener and allow them to converse as if they were in a quiet environment. Although HAs and CIs frequently incorporate noise reduction algorithms, these algorithms are not effective when the background is babble. The problem of removing babble involves segregating speech from speech. Hence, the spectral properties of the signal and noise are extremely similar.

Despite these challenges, we developed an algorithm to remove background babble. In the following study will test the ability of cochlear implant users to understand speech with background babble noise using our noise reduction algorithm or no noise reduction algorithm. We hypothesize that CI users will be able to understand significantly more speech in babble noise when using our algorithm.

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Detailed Description

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Conditions

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Hearing Loss

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Experiment

Subjects will be tested for their ability to understand speech with and without noise reduction

Group Type EXPERIMENTAL

Noise Reduction

Intervention Type OTHER

In within subject design, listeners will have background noise removed by a noise reduction algorithm

Interventions

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Noise Reduction

In within subject design, listeners will have background noise removed by a noise reduction algorithm

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Subjects with CIs 12 years of age and older with no diagnosis of other communicative or cognitive disorders. Subjects must have native or native-like English proficiency.

Exclusion Criteria

No diagnosed cognitive or communicative disorders (other than hearing loss), presence of acute/chronic otitis media, useable acoustic hearing, and non-English speaking.

Minimum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No