padthv1 an old-school polyphonic additive synthesizer

What's padthv1 ?

padthv1 is an old-school polyphonic additive synthesizer with stereo fx.

padthv1 is based on the PADsynth algorithm by Paul Nasca, as a special variant of additive synthesis.

Features:

• a pure stand-alone JACK client with JACK-session, NSM (Non/New Session Management) and both JACK MIDI and ALSA MIDI input support;
• a LV2 instrument plug-in.
  URI: http://padthv1.sourceforge.net/lv2

padthv1 is free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Sourceforge project page: https://sourceforge.net/projects/padthv1

Weblog: https://www.rncbc.org

See also:

• synthv1 - an old-school polyphonic synthesizer;
• samplv1 - an old-school polyphonic sampler;
• drumkv1 - an old-school drum-kit sampler.

Screenshots

Click on image to see more screenshots...

Requirements

The software requirements for build and runtime are listed as follows:

Mandatory:

• Qt framework (core, gui, xml), C++ class library and tools for cross-platform application and UI development
  https://qt.io/
• FFTW3, a C library for computing the discrete   Fourier transform (DFT) in one or more dimensions
  http://www.fftw.org

Optional (opted-in at build time):

• JACK Audio Connection Kit
  https://jackaudio.org/
• ALSA, Advanced Linux Sound Architecture
  https://www.alsa-project.org/
• LV2, Audio Plugin Standard, the extensible successor of LADSPA
  http://lv2plug.in/
• liblo, Lightweight OSC implementation
  (needed for NSM support)
  http://liblo.sourceforge.net/

Downloads

Latest release

2024-10-31 - A Halloween'24 Release.
padthv1-1.1.3.tar.gz

• Prepping up next development cycle (Qt >= 6.8)

Previous and older releases, including the change log, are also available here. You may also check out from the latest bleeding edge development source tree, using Git.

You can browse all files available for download, including binary packages, at padthv1 Files on SourceForge.net.

Installation

Unpack the tarball and in the extracted source directory:

cmake [-DCMAKE_INSTALL_PREFIX=prefix] -B build

cmake --build build [--parallel Njobs]

and optionally as root:

[sudo] cmake --install build

Note that the default installation path prefix is /usr/local .

Configuration

padthv1 holds its settings and configuration state per user, in a file located as $HOME/.config/rncbc.org/padthv1.conf. Normally, there's no need to edit this file, as it is recreated and rewritten everytime padthv1 is run.

Bugs

Plenty still, however padthv1 may be considered in production/stable phase already.

Support

padthv1 is open source free software. For bug reports, feature requests, discussion forums, mailling lists, or any other matter related to the development of this piece of software, please use the Sourceforge project page.

You can also find timely and closer contact information on my personal web site.

Acknowledgements

padthv1 logo/icon is derived from an original fine work of Jarle Richard Akselsen.

Enjoy.