Effects of Nonlinear Signal Processing Algorithms on Speech Perception

NCT05954520 | Withdrawn FDA Device

• 1 other identifier: 18675
• Study Type: interventional
• Target: N/A
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to investigate the effect of nonlinear signal processing algorithms on speech perception.

Conditions

Speech; Hearing Loss, Sensorineural; Hearing Aids

Keywords

speech perception, hearing aids

Outcome Measures

Primary Outcomes (1)

• Speech understanding

  Percent words correct will be measured

  1-2 hours

Secondary Outcomes (1)

• Preference

  15 minutes

Study Arms (1)

Perceptual measures

EXPERIMENTAL

Perception will be measured for different algorithm settings and environmental variables (type of noise and signal-to-noise ratio)

Device: Tympan

Interventions

Tympan DEVICE

Participants will wear a prototype hearing aid (called the Tympan)

Perceptual measures

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Between the ages of 18 and 65
• Native speaker of English
• Have bilateral, symmetric sensorineural hearing loss that is less than 75 decibels (dB) Hearing Level (HL) at 1000 Hz and below.

You may not qualify if:

• Subjects with normal hearing, mixed hearing loss, or asymmetric sensorineural hearing loss.
• Subjects who younger than 18 or older than 65.
• Subjects who are not native speakers of English.
• Subjects with thresholds more than 70 dB HL at 2000 Hz and below

Sponsors & Collaborators

• Indiana University: lead

Study Sites (1)

Health Sciences Building

Bloomington, Indiana, 47408, United States

Location

MeSH Terms

Conditions

Speech; Hearing Loss, Sensorineural

Condition Hierarchy (Ancestors)

Verbal Behavior; Communication; Behavior; Hearing Loss; Hearing Disorders; Ear Diseases; Otorhinolaryngologic Diseases; Sensation Disorders; Neurologic Manifestations; Nervous System Diseases; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: July 13, 2023
• First Posted: July 20, 2023
• Study Start: August 1, 2023
• Primary Completion: June 9, 2025
• Study Completion: June 9, 2025
• Last Updated: June 12, 2025

Record last verified: 2025-06

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)