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Effects of Altered Auditory Feedback on Speech Fluency

NCT06011837 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2026-05-14

No results posted yet for this study

Summary

The purpose of the study is to use altered auditory vocal feedback to increase fluency in people who stutter and to examine changes in this effect over the course of a one month period occurring outside the laboratory setting.

Conditions

  • Stuttering, Adult

Interventions

DEVICE

Altered Auditory Feedback

Mumble Melody is an application that leverages Altered Auditory Feedback (AAF). During AAF, a person's speech is altered in near-real time. Mumble Melody modulates the user's voice and plays it back to them while they are speaking. Included are Unaltered (raw voice), Whisper (voiceless sound), Reverb (cathedral sound), and Harmonized (robotic sound) voice transformations.

Sponsors & Collaborators

Principal Investigators

  • Satrajit Ghosh, PhD · Massachusetts Institute of Technology

Study Design

Allocation
NA
Purpose
SUPPORTIVE_CARE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
100 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-05-26
Primary Completion
2024-06-15
Completion
2026-06-01

Countries

  • United States

Study Locations

More Related Trials

Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06011837 on ClinicalTrials.gov