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a Dynamic Harmonics Calculator

What is this?

The Harmonync is a platform that allow the user/musician to play the Harmonic Series and changing its fundamental tone in real-time. Just like the overtone singers do with the polyphonic overtone singing technique. The idea is to play a fundamental-variable harmonic series on electronic and electro-acoustical instruments retuned via MIDI and in real-time. The name come from the union of the words “Harmonic” and “Sync”.

Actually the Harmonync is prototyped as a patch for Pure Data using the Extended Libraries. The first release was developed with Pd-extended 0.43.4 for Mac OS X but it should run on other platforms.

Quick Start

  1. Download Pd-extended here, and install it.
  2. Download the Harmonync patch from the project page on GitHub and unzip the files in the archive.
  3. Run the harmonync_gui.pd file.

Note: Do not rename or move any other file inside the main folder. Move all files and folders together.

How to use it?

Visit for the Tutorials. There is no comprehensive guide at this moment, it is currently being drafted. A video-guide and a step-by-step tutorial will be released as soon as possible. For any questions you may ask at[at]gmail[dot]com.

First public document

The document "A first look at THE HARMONYNC: A Dynamic Harmonics Calculator – Draft of Specifications and User Guide" is available here and has the following DOI: 10.978.88940077/01


Harmonync – a Dynamic Harmonics Calculator Copyright (C), 2013-Today Walter Mantovani

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see [at] gmail [dot] com.


a Dynamic Harmonics Calculator







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