Bjango releases Double Freak, a free dual oscillator frequency follower plugin

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Hello KVR! We have released a free plugin as part of the KVR Developer Challenge 2026.



Double Freak is a wild dual oscillator synth that tracks the pitch of incoming audio.

Thicken or completely replace audio with a pair of freaky, monstrous, unpredictable oscillators. Double Freak plays sawtooth, square, or triangle waves that tightly or loosely follow the pitch of incoming audio. It’s a bit like a synth guitar pedal, but also not.

Double Freak works best with monophonic audio, like a single vocal track, a melody synth line, or anything tonal. If you really want to get freaky, send it something else. The pitch tracking is intentionally erratic with polyphonic and atonal input. That’s how we like it.

Env mod and decay

Bend the start of notes up or down, with Double Freak’s pitch envelope.

Channel linking

Pitch tracking can be independent, where a stereo track’s left and right channels pitch can be wildly different, for a super wide effect. Or, pitch tracking can be locked across all channels, maintaining focus.

Analog modelled distortion

Double Freak features two different distortion types that have been modelled on analog hardware. The distortion processing happens after the mixer, so the dry incoming signal can also be distorted.

This means Double Freak can be used purely as a distortion plugin, if you’d like — simply turn down the volume of the oscillators and leave the dry signal loud. The dry level control determines how distorted the signal will be.

Requirements

Double Freak is an audio plugin. It is available as an Audio Unit version 3 and VST3 plugin for macOS and Windows. Double Freak works with a wide range of audio apps.

doublefreak-hero.jpg

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If you have any questions, feel free to ask!

More info and download: bjango.com/plugin/doublefreak/
KVR Double Freak page