convolve_STEREO — 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: The Stereo Fibonacci Impulses Convolution script generates two distinct, yet mathematically related, rhythmic patterns—one for the left channel and one for the right—and applies them simultaneously to the input sound via convolution. This approach creates a dense, expansive stereo field where the echoes exhibit a high degree of polyrhythmic complexity (due to different starting values and scaling) and spatial diffusion (due to differing amounts of random jitter).

Quick start

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

Parameters (form fields)

Name (GUI)	Type	Default
duration_seconds	positive	1.5
number_of_impulses	natural	12
left_fib_start_1	positive	1
left_fib_start_2	positive	1
left_scale_divisor	positive	100.0
left_jitter_stddev	positive	0.010
right_fib_start_1	positive	2
right_fib_start_2	positive	3
right_scale_divisor	positive	120.0
right_jitter_stddev	positive	0.020
sampling_frequency	positive	44100
pulse_amplitude	positive	1
pulse_width	positive	0.05
pulse_period	positive	2000
play_after_processing	boolean	1

Outputs

Object name: IMPULSE_STEREO
Sample rate: unknown
Normalization: Final peak scaled to 0.9