At a glance
ClinicalIndex Comparison RecordStandardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Online Assessment and Enhancement of Auditory Perception for Speech Sound Errors: Visual Acoustic Biofeedback for RSE Via Telepractice
In Brief
A Phase 2 clinical trial evaluating Visual-Acoustic Biofeedback Treatment and No Treatment for Speech Sound Disorder. Completed, enrolled 40 participants across 1 site.
Detailed Summary
This research will meet a public health need by evaluating the efficacy of speech intervention supplemented with real-time visual-acoustic biofeedback when delivered using remote technologies.
Study Details
Timeline
Interventions
In visual-acoustic biofeedback treatment, the elements of traditional articulatory treatment (i.e., auditory models and verbal descriptions of articulator placement) are enhanced with a dynamic display of the speech signal in the form of the real-time LPC (Linear Predictive Coding) spectrum. Because correct vs incorrect productions of /r/ contrast acoustically in the frequency of the third formant (F3), participants will be cued to make their real-time LPC spectrum match a visual target characterized by a low F3 frequency. They will be encouraged to attend to the visual display while adjusting the placement of their articulators and observing how those adjustments impact F3.
10-week period of no treatment