NCT07822802

Brief Summary

The goal of this clinical trial is to establish how speech understanding is affected by background noise in people with normal hearing. The main questions it aims to answer are:

  • Does noise affect speech understanding similarly in all frequency regions?
  • Does adding noise cause speech understanding to fall away at a similar rate across frequencies? Participants will listen to speech in different frequency regions, with noise added at various levels, and respond with the words that they hear.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
200

participants targeted

Target at P75+ for not_applicable

Timeline
11mo left

Started Sep 2026

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress1%
Sep 2026Aug 2027

First Submitted

Initial submission to the registry

September 10, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

September 16, 2026

Completed
14 days until next milestone

Study Start

First participant enrolled

September 30, 2026

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2027

Last Updated

September 16, 2026

Status Verified

September 1, 2026

Enrollment Period

11 months

First QC Date

September 10, 2026

Last Update Submit

September 15, 2026

Conditions

HearingHealthySpeech Perception

Keywords

Speech PerceptionSpeech Discrimination TestsHearing

Outcome Measures

Primary Outcomes (1)

  • Percent words correct

    The percentage of words correctly heard and reported by the listener

    During a single listening session lasting not more than 2 hours

Study Arms (3)

Low-frequency region

EXPERIMENTAL

Speech and noise filtered to the low frequencies

Behavioral: Speech filteringBehavioral: Speech with background noise

Mid-frequency region

EXPERIMENTAL

Speech and noise filtered to the mid frequencies

Behavioral: Speech filteringBehavioral: Speech with background noise

High-frequency region

EXPERIMENTAL

Speech and noise filtered to the high frequencies

Behavioral: Speech filteringBehavioral: Speech with background noise

Interventions

Speech filteringBEHAVIORAL

Speech will be filtered into one of three frequency regions.

High-frequency regionLow-frequency regionMid-frequency region
Speech with background noiseBEHAVIORAL

Background noise will be added to the speech at different levels.

High-frequency regionLow-frequency regionMid-frequency region

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age between 18 and 70 years
  • Native English speakers
  • No known history of cognitive impairment
  • No known history of hearing impairment

You may not qualify if:

  • Age under 18 or over 70 years
  • Non-native English speaker
  • Known history of cognitive impairment
  • Known history of hearing impairment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Ohio State University

Columbus, Ohio, 43210, United States

Location

Related Publications (1)

  • Yoho SE, Apoux F, Healy EW. The noise susceptibility of various speech bands. J Acoust Soc Am. 2018 Apr;143(4):2527. doi: 10.1121/1.5034172.

    PMID: 29716288BACKGROUND

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 10, 2026

First Posted

September 16, 2026

Study Start

September 30, 2026

Primary Completion (Estimated)

August 31, 2027

Study Completion (Estimated)

August 31, 2027

Last Updated

September 16, 2026

Record last verified: 2026-09

Locations

US(1)