Nautilus Mod-7 VPM Engine


The MOD-7 engine is a powerful synthesis engine found in some Korg synthesizers, such as the Korg Kronos and the Korg Nautilus. VPM stands for "Variable Phase Modulation," which is a type of digital frequency modulation synthesis.

The MOD-7 engine uses a combination of subtractive synthesis, frequency modulation (FM), and wave shaping to generate a wide variety of sounds. The VPM component of the engine allows for the creation of complex timbres by modulating the phase of one oscillator with another, similar to FM synthesis.

However, unlike traditional FM synthesis, VPM allows for more precise control over the modulating waveform's phase, which can lead to more intricate and detailed sounds. The MOD-7 engine also includes a variety of other features, such as multiple filter types, extensive modulation capabilities, and programmable arpeggiators, making it a versatile tool for sound design and music production.