C0MP4CT

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4-voice dual oscillator synth engine with supersaw for Korg NTS-1 mkii*

🎧 Hear C0MP4CT in action

Youtube short demonstrating plugin: C0MP4CT for NTS-1 mkii Demo

C0MP4CT packs a full polyphonic synthesizer into a single NTS-1 mkii oscillator slot. Four voices, each with two oscillators: saw or pulse with pulse width control. Update 1.1 adds 7-saws supersaw option to both oscillators. DJ-style lowpass/highpass filter with resonance, two simplified envelopes, and flexible modulation routing for the mod envelope and the NTS-1 mkii's built-in LFO.

NOTE: The supersaw oscillators are quite resource intensive. Using supersaw together with certain combinations of FX might result in a degraded experience.

It's available for €5 (higher contributions always welcome). Have a promo code? Apply it at checkout for your discount.

If you have the time, please also consider reviewing the plugin, this helps us and also helps other potential users!

Parameters

CUT – DJ-style bidirectional filter cutoff. Turn left for lowpass, right for highpass. Center = filters open.

RES – filter resonance amount (0–100), applies to whichever filter direction is active

Edit Menu

TYPE1 – oscillator 1 waveform: center = SAW, turn left = supersaw (increasing detune spread), turn right = SQR (variable pulse width)

TYPE2 – oscillator 2 waveform: center = SAW, turn left = supersaw (increasing detune spread), turn right = SQR (variable pulse width)

TUNE2 – detune oscillator 2: ±30 cents, ±11 semitones, or ±2 octaves from center

MIX – blend between oscillator 1 and 2 (0–100%)

AENV – amplitude envelope, bidirectional: left = decay only (plucks), center = instant gate, right = attack + release (pads)

ENV2 – modulation envelope, same shape control as AENV, routed to the target selected in MTRGT

ENVAM – envelope modulation amount, bipolar (±200): positive or inverted modulation from ENV2 to its target

MTRGT – selects destinations for mod envelope + LFO. 40 combinations across pitch, pulse width, cutoff, and mix.

Thank you for your support! Can't wait to hear what you create with this!

David/Frostmod

Korg NTS-1 mkii is required — C0MP4CT is not compatible with the original NTS-1.

* The names Korg and NTS-1 mkii used above and from now on in this document refer to the company name, brand, and product owned by Korg Inc and are only written here for context/relevance

Updates/changelog

1.1.0 May 19th - 2026:

• Added supersaw oscillator option to both oscillators
• Performance improvements

1.0.1 May 5th - 2026:

• Fixed issue where notes could be missed
• Fixed hanging notes caused by voice stealing not properly releasing previous notes