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Showing 1–20 of 20 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: voice acoustics Clear all
Terminated Not applicable Interventional

Optimizing the Social Engagement System in Prader-Willi Syndrome: Insights From the Polyvagal Theory

NCT03101826
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Listening Project Protocol
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
13 Years to 25 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Brewster, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 2, 2023 · Synced Sep 28, 2026, 6:56 AM EDT
Completed Not applicable Interventional

Prospective Study of Voice Therapy in Children: A Pilot Study

NCT02217111
View directory record Official record
Conditions
Vocal Fold Nodules
Interventions
Adventures in Voice: Pediatric Voice Therapy
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
4 Years to 11 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 24, 2016 · Synced Sep 28, 2026, 6:56 AM EDT
Completed No phase listed Observational Results available

Stream Segregation and Speech Recognition in Noise in Individuals With Cochlear Implants

NCT04854031
View directory record Official record
Conditions
Cochlear Implants
Interventions
Cochlear Implants
Device
Lead sponsor
Father Flanagan's Boys' Home
Other
Eligibility
19 Years to 80 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated May 17, 2023 · Synced Sep 28, 2026, 6:56 AM EDT
Completed Not applicable Interventional

Study for Evaluating Different Methods of Measuring Depression Treatment Response

NCT00406952
View directory record Official record
Conditions
Depressive Disorder, Major
Interventions
electronic diary, Sertraline, Placebo, voice acoustics
Procedure · Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 65 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
12
States / cities
Norwich, Connecticut • Aventura, Florida • Jacksonville, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2008 · Synced Sep 28, 2026, 6:56 AM EDT
Terminated Not applicable Interventional

Gender-affirming Voice Training With Visual Feedback

NCT07017595
View directory record Official record
Conditions
Transgender Women, Voice Alteration
Interventions
Visual-acoustic biofeedback: experimental
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Sep 28, 2026, 6:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Use of Conversation and Acoustic Signals in Measuring Depression Severity

NCT00831935
View directory record Official record
Conditions
Depression
Interventions
Not listed
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 7, 2013 · Synced Sep 28, 2026, 6:56 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Patients With and Without Phonotrauma

NCT05625191
View directory record Official record
Conditions
Phonotrauma
Interventions
Acoustic voice analysis, High-speed videoendoscopy
Diagnostic Test
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 28, 2026, 6:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Speech, Linguistic and Acoustic Markers in Parkinson's Disease

NCT04273672
View directory record Official record
Conditions
Parkinson Disease, Cognitive Impairment, Mild, Speech
Interventions
Cognitive Battery, Voice, Speech and Language Analysis, Questionnaires and Clinical Assessments, DNA Analysis
Diagnostic Test · Behavioral · Genetic
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced Sep 28, 2026, 6:56 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Interaction of Caffeine and Hydration on Voice

NCT01435837
View directory record Official record
Conditions
Voice Disorders
Interventions
C2 (200mg of caffeine; 1/2 L of water), C3(200mg of caffeine; 1 L of water), C1 (200mg of caffeine, no water), Placebo (no caffeine, no water).
Drug
Lead sponsor
Southern Illinois University Carbondale
Other
Eligibility
18 Years to 35 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Carbondale, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 10, 2013 · Synced Sep 28, 2026, 6:56 AM EDT
Recruiting Not applicable Interventional

Characterizing the Impact of Presbyphonia on Social Interaction

NCT06441136
View directory record Official record
Conditions
Presbyphonia
Interventions
PhoRTE Program, University of California Los Angeles (UCLA) Loneliness Scale, Social Disconnectedness Scale, Patient Health Questionnaire 9, Aging Voice Index, The Edmonton Frail Scale, Vocal Effort Scale, Montreal Cognitive Assessment, Voice Handicap Index-10, Voice Problem Impact Scales, Cough Severity Index, Laryngoscopy, Acoustic, perceptual, and aerodynamic assessments
Other · Procedure
Lead sponsor
Matthew R. Hoffman
Other
Eligibility
65 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 16, 2025 · Synced Sep 28, 2026, 6:56 AM EDT
Recruiting Not applicable Interventional

A Frequency-Modulated Music Intervention to Enhance Cognitive Processing Therapy (CPT) for PTSD

NCT06925867
View directory record Official record
Conditions
PTSD - Post Traumatic Stress Disorder
Interventions
Frequency Filtered Music, Unfiltered Music, Cognitive Processing Therapy for PTSD
Other · Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
2
States / cities
Columbus, Ohio • Dayton, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Sep 28, 2026, 6:56 AM EDT
Completed Not applicable Interventional

Assessing the Effects of Patient Self-Rating of Voice Quality on Voice Therapy Attendance and Outcomes

NCT05237648
View directory record Official record
Conditions
Dysphonia
Interventions
Online Voice quality education module, Vocal hygiene module
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 100 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 27, 2025 · Synced Sep 28, 2026, 6:56 AM EDT
Recruiting Not applicable Interventional

Speech Amplification Devices for Parkinson Disease: Talker- and Technology-Driven Enhancements

NCT07599696
View directory record Official record
Conditions
Parkinson Disease, Atypical Parkinsonism
Interventions
Behavioral speech strategies + speech amplification
Behavioral
Lead sponsor
Michigan State University
Other
Eligibility
50 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 28, 2026, 6:56 AM EDT
Terminated Not applicable Interventional

Home-based SSP on Individuals With PWS

NCT03871751
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Safe and Sound Protocol
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
3 Years to 17 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 6, 2022 · Synced Sep 28, 2026, 6:56 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Characterization of Clinical Phenotypes of Laryngeal Dystonia and Voice Tremor

NCT05150106
View directory record Official record
Conditions
Laryngeal Dystonia, Spasmodic Dysphonia, Tremor
Interventions
Clinical assessments of laryngeal function
Other
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years to 80 Years
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 28, 2026, 6:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Different Viscous Foods and Liquids on Swallowing Sounds

NCT03024333
View directory record Official record
Conditions
Deglutition Disorder
Interventions
Not listed
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 14, 2023 · Synced Sep 28, 2026, 6:56 AM EDT
Completed Not applicable Interventional

The Listening Project at Reiss-Davis/Vista Del Mar Child and Family Services

NCT02398422
View directory record Official record
Conditions
Auditory Perceptual Disorders, Stress Disorder
Interventions
Listening Project Protocol
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
6 Years to 17 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 24, 2021 · Synced Sep 28, 2026, 6:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vocal Demands Among Classroom Teachers

NCT01625728
View directory record Official record
Conditions
Voice Disorders
Interventions
Not listed
Lead sponsor
Southern Illinois University Carbondale
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
1
States / cities
Carbondale, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 22, 2021 · Synced Sep 28, 2026, 6:56 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Development of Imaging Biomarkers for Voice After Pediatric Airway Reconstruction

NCT03076931
View directory record Official record
Conditions
Voice Disorders
Interventions
Microlaryngoscopy, Voice Evaluation, Airway Reconstruction
Procedure
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
3 Years to 30 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 8, 2021 · Synced Sep 28, 2026, 6:56 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Modeling the Effects of Vocal Cord Atrophy on Airflow and Voice Quality in Elderly Individuals

NCT03458104
View directory record Official record
Conditions
Vocal Cord Atrophy
Interventions
Cone Beam Computed Tomography, Acoustic/Auerodynamic testing, Laryngovideostroboscopy
Other · Diagnostic Test
Lead sponsor
Duke University
Other
Eligibility
65 Years to 80 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 6, 2020 · Synced Sep 28, 2026, 6:56 AM EDT