vocametrix_calculate_jitter_shimmer
Calculates jitter and shimmer from a sustained vowel recording to detect irregular vocal fold vibration associated with dysphonia. Normal jitter <1.04%, shimmer <3.81 dB.
Instructions
Calculate jitter (period perturbation, PPQ5) and shimmer (amplitude perturbation) from a sustained vowel. Normal jitter < 1.04%; normal shimmer < 3.81 dB. Elevated values indicate irregular vibration — associated with dysphonia.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| sustainedVowelPath | Yes | Absolute path to a WAV audio file on the local filesystem |