About:

SpectMorph is a free software project which allows to analyze samples of musical instruments, and to combine them (morphing). It can be used to construct hybrid sounds, for instance a sound between a trumpet and a flute; or smooth transitions, for instance a sound that starts as a trumpet and then gradually changes to a flute. In its current version, SpectMorph ships with many ready-to-use instruments which can be combined using morphing.

The main website for this project is: https://www.spectmorph.org

Compiling SpectMorph:

To compile SpectMorph, use the usual

./configure
make
make install

If you get a message that the instruments are missing, you can use the --with-download-instruments configure option to fix this (see below).

LV2 Support:

Configure should automatically determine via pkg-config whether the lv2 development headers are available. When the LV2 plugin doesn't get built, install them.

Plugins:

SpectMorph supports three different plugin formats,

CLAP plugin
VST plugin
LV2 plugin

for Linux, macOS (x86_64 and Apple Silicon) and 64-bit Windows, so it works in many different hosts, such as Ardour, Qtractor, Anklang, Bitwig, Renoise, Cubase, Ableton Live and others. For hosts that support CLAP, using the SpectMorph CLAP plugin is the preferred way of integration.

Controlling Morphing with Automation:

The plugin has four properties that can be automated by the host, called Control #1 ... Control #4. To use these, for instance for linear morphing, the Control Input can be set to "Control Signal #1" (or #2) in the UI. After that the host can change the morphing from left source to right source and back.

JACK:

The smjack program is a fully functional JACK Client using SpectMorph. You need to connect midi input and audio output (for instance with using QJackCtl).

Controlling Morphing with CCs:

The control inputs (Control Signal #1 ... Control Signal #4) are mapped to the midi CC controls (General Purpose Controller 1..4).

SpectMorph Instruments:

SpectMorph has a set of instruments which ship with official releases. These are required to use SpectMorph. The instruments are included in all binary releases. If you are building from the original source tarball, the instruments are also included (in the data directory).

If you're building from git, you will need to download the instruments before installing SpectMorph. The easiest way to do so is using:

$ ./autogen.sh --with-download-instruments

which will download the correct version of instruments automatically. You can also download the appropriate version of the instruments from the releases of the spectmorph-instruments git repository and store them in the data directory before building SpectMorph:

swesterfeld/spectmorph