March 3, 2026

Harmonic Amplitude Differences Before and After Voice Treatment for Parkinson's Disease and Their Relationship to Voice Quality and Speech Intelligibility

Voice treatment significantly improves harmonic amplitude, enhancing overall voice quality.
The study shows a direct relationship between harmonic amplitude and speech intelligibility in patients with Parkinson's disease.
Analysis of voice samples before and after treatment highlights measurable gains in communicative effectiveness.
Findings underscore the importance of voice therapy for improving speech outcomes in neurological conditions.

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