New Systems Instruments present a versatile VCO with simple interface and huge sonic capabilities – the Harmonic Shift Oscillator. In this video we are going to have a closer look at this interesting new module. It seemed to be specifically useful for percussive and drone sounds. Percussive sounds profit from the flexibility of the harmonic content, drones profit from the second audio output, which gives the sound a great depth. But first things first, here are some more words about the module.
The Harmonic Shift Oscillator is a fully analog oscillator with precise control of harmonic components and two 90-degree phase shifted outputs for stereo effects. It allows separate control of pitch, amplitude and stride (interval between harmonics) via CV or manually. This allows you to create very complex waveforms that can sound both harmonic and dissonant. When the level parameter is set to a high value, HSO starts to distort wonderfully. With the second output phase shifted by 90 degrees, very broad and animated drones can be created in no time. It is also highly recommended to use the second output for feedback purposes.