Recruiting

Assistive Listening Systems

Sponsor:

University of Illinois at Chicago

Code:

NCT07533071

Conditions

Audio Processing Delay

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Interventions

Audio delay

Study Details

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.

Conditions

Audio Processing Delay

Study ID

NCT07533071

Start date

Apr 15, 2026

Status verified date

Jul, 2026

Completion date

Aug, 2028

Anticipated

Primary completion date

Aug, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Inclusion Criteria:

  • Comfortable conversing in English

Exclusion Criteria:

  • Speech or hearing disorder

Study Design

Enrollment

60 participants

Anticipated

Intervention Model

Single group

Primary purpose

Basic Science

Interventions and Outcome Measures

Arms

experimental: Effects of Delay in Hearing Assistive Technology

Interventions

Audio delay

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.

Primary outcome measure

  • Subjective disturbance [ Time Frame: Approximately 1 minute intervals ]

Central Contacts and Locations

Central contacts

Ryan M Corey, PhD

312-996-8274ListeningTech@uic.edu

Locations

Science and Engineering Laboratory

Recruiting

Chicago, Illinois, United States, 60607

Contacts

Ryan M Corey, PhD

312-996-8274ListeningTech@uic.edu

More Information

Sponsor

University of Illinois at Chicago

Last update posted

Jul 9, 2026

Last verified

Jul, 2026

Keywords

  • Audio
  • Hearing
  • Latency
  • Assistive Listening
  • Wireless Microphone

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-08. This information was provided to ClinicalTrials.gov by University of Illinois at Chicago on 2026-07-09.