Kontour - a Collaboration with NI

by Stephan Schmitt on October 14, 2014


You might have noticed the release of Kontour as one of the new instruments included in Native Instruments' Komplete 10 bundle. Kontour is the result of the first collaboration between Native Instruments and Nonlinear Labs. (Full disclosure: I am still a shareholder at NI.) Kontour's synthesis engine was developed by Nonlinear Labs. It is based on Phase 22, a synthesizer I have been working on for several years. Kontour is its adaptation as a highly refined software instrument.
Kontour's concept consists of the following characteristics:

Similarities and Differences

Kontour can be considered a sort of "preview" to the first synthesis engine of our hardware synthesizer (working name "Emphase"). The audio processing structure of Emphase will be similar, but not identical (and therefore not preset-compatible) to that of Kontour.
So the question arises: just what are these differences? First of all, we are creating a synthesizer. As we have the performing musician in mind, Emphase will be totally dedicated to human real-time control. Automatic control sources like Kontour’s motion recorders are replaced by the live input from the musician.
We have very high aims in terms of expressiveness and therefore we use our high-resolution TCD protocol. TCD gives us complete control over how the voices are assigned, how they are influenced by the pitch bender, ribbons, and pedals, as well as what is going on inside of each voice. In addition, morphing will play an important role for finding and modifying sounds.
You see the different intentions: Kontour integrates perfectly with the environment of software-based music production, while Emphase is optimized as a stand-alone hardware instrument.

The User Interface
The user interface was co-developed with NI (great work, André, Fabian, and Clément!). Experts at NI also managed the user documentation as well as the creation of the preset content, which involved excellent sound designers.

In this context we are taking a dual approach to the user interface: First of all, our hardware comes with a large number of buttons and LEDs, two ribbons, and two displays, providing a haptic surface allowing quick access to all of the synthesizer parameters. Secondly, any browser-capable mobile device or computer can be WiFi-linked to the synthesizer to produce an intuitive "move and zoom" access to the parameters and presets, comparable to the use of digital maps. This is realized by using JavaScript for drawing all control elements in real-time to create a highly dynamic view with a level of detail that depends on the zoom scale. We are preparing a video to demonstrate some details of this new synthesizer interface concept.


Currently, we are working on ideas that have evolved from the development of Kontour. For example:

  • a modulation system where more than 80 parameters can be controlled by each of the four macro controls
  • flexible mapping of the eight physical modulation sources (such as pitch bend, aftertouch, the pedals, etc.) to the four macro controls
  • stereo pan for the oscillators and filters in the output mixer, stereo pan of voices by key tracking, and stereo spreading of unison voices
  • manual and envelope control over the phase offsets of the oscillators
  • the Gap Filter now also works as a bandpass filter and offers adjustable resonance
  • more control over the stereo processing of Flanger and Echo
  • the feedback signal got its own sine shaper and envelope controls
  • Envelope C gets more variability and can have a bipolar shape
  • the delay of the Comb Filter can be (phase-)modulated by the oscillators

As you see, we are constantly learning, and the work on Kontour has given important impulses to the evolution of our synth engine. Thanks to the colleagues at NI, the sound designers and the first users of Kontour for your extremely valuable feedback!

We'll continue to give updates on our website as we move ahead with the synth engine, the user interfaces, and the overall synth construction.

Kontour Kontour

Kontur, User Interface

Hardware Prototype Hardware Prototype

Hardware Prototype


Graphical User Interface

Block diagram Block diagram

Block diagram

Working in Reaktor Working in Reaktor

Using Reaktor to develop and test the audio engine