Download Double Freak
Audio Unit requires macOS 14+.
VST requires macOS 13+ or Windows 10+.
Want to install it manually? VST for Mac. VST for Windows.
Double Freak
Dual oscillator frequency follower plugin
Double Freak Audio Unit 1.0.2 (version history). Double Freak VST 1.0.2.0 (version history).
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.
Audio examples
Double Freak shines on single vocal tracks, monophonic synths, and other monophonic sounds, but it’s the kind of effect that can be used on anything. There are no rules.
Vocal
Vocal with Double Freak
Vocal tracks with Double Freak
Bassline
Bassline with Double Freak
Drums
Drums with Double Freak
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.
Absolutely free
Double Freak is a free plugin with no strings attached. Double Freak and all our products are privacy focused, with no ads, no analytics, and no creepy tracking.
“I have been using Double Freak in my sound design workflow over the past few days as a quick way to turn simple sounds into something more interesting.”
— Tomislav Zlatic, Bedroom Producers Blog
Double Freak Audio Unit 1.0.2 (version history). Double Freak VST 1.0.2.0 (version history).
You might also like Robot Rocket, our vocoder plugin.