Application of Ideal Binary Masking to Disordered Speech

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

435 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-12-01

Study Completion Date

2023-12-30

Brief Summary

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Dysarthria and hearing loss are communication disorders that can substantially reduce intelligibility of speech and the addition of background noise adds a further challenge. This proposal utilizes an established signal processing technique, currently exploited for improved understanding of speech in noise for listeners with hearing loss, to investigate its potential application to overcome speech-in-noise difficulties for listeners understanding dysarthric speech. Successful completion of this project will demonstrate proof-of-concept for the application of this signal processing technique to dysarthric speech in noise, and inform the development of an R01 proposal to perform a large-scale evaluation of the technology, and clinically meaningful implications, in a broad range of disordered speech types and severities.

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Detailed Description

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Conditions

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Hearing Loss, Sensorineural Dysarthria

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Normal Hearing

Listeners with normal hearing

Group Type EXPERIMENTAL

Ideal binary mask

Intervention Type BEHAVIORAL

Speech in noise processed by ideal binary mask to reduce background noise

Hearing Impaired

Listeners with hearing loss

Group Type EXPERIMENTAL

Ideal binary mask

Intervention Type BEHAVIORAL

Speech in noise processed by ideal binary mask to reduce background noise

Interventions

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Ideal binary mask

Speech in noise processed by ideal binary mask to reduce background noise

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Native speakers of American English
* No history of speech or language impairment
* No significant prior contact with persons having neurogenic speech disorders

* 18 to 70 years of age
* Auditory thresholds of 20 dB HL or better bilaterally at octave frequencies from 250-8000 Hz (if under 55 years of age)
* Auditory thresholds of 25 dB HL or better bilaterally at octave frequencies from 250-4000 Hz (if over 55 years of age)

* 18 to 90 years of age

Exclusion Criteria

* Mild or profound hearing loss
* Conductive or mixed hearing loss
* Asymmetric hearing loss
* Obvious concomitant cognitive or mental impairment
* Unable to achieve upward of 20% words correct

Minimum Eligible Age

18 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes