Jitter-Shimmer Formant Mapping — User Guide

Praat script.

Author: Shai Cohen Affiliation: Department of Music, Bar-Ilan University, Israel Version: 0.1 (2025) License: MIT License Repo: https://github.com/ShaiCohen-ops/Praat-plugin_AudioTools
Contents:
What this does Quick start Parameters Outputs

What this does

Praat script.

Process Description: This script implements an analytical and generative process. It first measures two core acoustic properties of the selected sound—Jitter (perturbation in fundamental frequency) and Shimmer (perturbation in amplitude)—and then uses these values as factors to dynamically shift and emphasize the sound's Formant regions (F1 and F2) through aggressive band-pass filtering. The intent is to map a characteristic of vocal instability or roughness (Jitter/Shimmer) onto a characteristic of vocal timbre (Formant structure).

Quick start

  1. In Praat, select a Sound object.
  2. Run script… → Jitter-Shimmer Formant Mapping.praat.
  3. Set parameters and click OK.
  4. Output object appears (see Outputs).

Parameters (form fields)

No parameters.

Outputs