Tremolo — 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 applies a Tremolo effect—a rhythmic, cyclic variation in amplitude—that is dynamically controlled by the instantaneous level of the input signal. Unlike a fixed-depth tremolo, this adaptive mechanism ensures that louder segments of the sound receive a deeper modulation, while quieter segments retain a flatter, less-modulated amplitude.

Quick start

In Praat, select a Sound object.
Run script… → Tremolo.praat.
Set parameters and click OK.
Output object appears (see Outputs).

Parameters (form fields)

Name (GUI)	Type	Default
modulation_rate_hz	positive	3
max_modulation_depth	positive	0.7
signal_sensitivity	positive	0.5
sensitivity_offset	positive	0.5
scale_peak	positive	0.99
play_after_processing	boolean	1

Outputs

Object name: output
Sample rate: unknown
Normalization: No automatic normalization