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prologue SDK (coming, spring 2018)

prologue introduces an open development API (Application Programming Interface) that allows users to extend the possibilities of the hardware via an SDK (Software Development Kit) and dedicated development tools. Via this SDK custom digital oscillators can be created for the MULTI ENGINE, and custom modulation effects can be added to the existing modulation effects. Users can then load these new custom oscillators and modulation effects into their prologue via the prologue Librarian application (Mac and Win), also to be available Spring 2018.

User Oscillators

prologue’s MULTI ENGINE section has 16 user slots to accommodate custom oscillators. Once loaded via the prologue Librarian application these custom digital oscillators coexist alongside the VCOs of each voice, play with the same polyphony and multitimbrality, and are processed through the same analog signal path.

The shape knob can be used to control parameters of the custom oscillators and up to 6 other parameters can be exposed via the program edit menu.

User Effects

prologue’s effects section also has 16 user slots to accommodate custom modulation effects. Once loaded via the prologue Librarian application these custom effects will appear alongside the existing modulation effects.
The speed and depth knobs can be used to control parameters of these custom modulation effects.

Factory Default User Oscillator: Waves

The prologue is preloaded with one user oscillator: Waves.
It consists of two main wavetable oscillators and an additional sub wave that can be optionally used as a ring modulation source. The bit depth of the mixed output can be reduced for a lo-fi effect.
The source code for Waves will be available as a template to start creating your own unique oscillators.

Creating Your Own: Getting Started

The prologue SDK, API documentation and associated development tools will be released in Spring 2018.