NCT07533071

Brief Summary

Wireless assistive listening systems can dramatically improve intelligibility in noisy environments, but they are cumbersome to use. Digital consumer devices, such as smartphones, could be more accessible and user-friendly, but they suffer from transmission delays that could be disturbing to listeners. Delay has been studied extensively for in-ear devices such as hearing aids, but not for remote microphone systems. This study aims to characterize the tolerable delay for wireless remote microphones both for both the user's own speech and for external sounds. This will provide valuable information for engineers designing next-generation assistive listening systems.

Trial Health

63
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
27mo left

Started Apr 2026

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress2%
Apr 2026Aug 2028

Study Start

First participant enrolled

April 1, 2026

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

April 8, 2026

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 16, 2026

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2028

Last Updated

April 16, 2026

Status Verified

April 1, 2026

Enrollment Period

2.3 years

First QC Date

April 8, 2026

Last Update Submit

April 8, 2026

Conditions

Audio Processing Delay

Keywords

AudioHearingLatencyAssistive ListeningWireless Microphone

Outcome Measures

Primary Outcomes (1)

  • Subjective disturbance

    Participants will rate their level of annoyance on a numerical scale.

    Approximately 1 minute intervals

Study Arms (1)

Effects of Delay in Hearing Assistive Technology

EXPERIMENTAL
Other: Audio delay

Interventions

Audio delayOTHER

Audio will be captured by several microphones, processed to add an artificial delay, and then played back through headphones. The sound levels and delays for each microphone will be varied.

Effects of Delay in Hearing Assistive Technology

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Comfortable conversing in English

You may not qualify if:

  • Speech or hearing disorder

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Science and Engineering Laboratory

Chicago, Illinois, 60607, United States

Location

Central Study Contacts

Ryan M Corey, PhD

CONTACT

312-996-8274corey1@uic.edu

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
Assistant Professor

Study Record Dates

First Submitted

April 8, 2026

First Posted

April 16, 2026

Study Start

April 1, 2026

Primary Completion (Estimated)

August 1, 2028

Study Completion (Estimated)

August 1, 2028

Last Updated

April 16, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

De-identified response data from all experiments will be shared.

Time Frame
Data will be shared alongside associated publications or no later than one year after the end of the study. The data will remain available indefinitely.
Access Criteria
The data will be available publicly.

Locations

US(1)