Main product image for BF-24 DRIFT: controlled, chaotic CV for AE Modular
Product image 1 for BF-24 DRIFT: controlled, chaotic CV for AE Modular
Product image 2 for BF-24 DRIFT: controlled, chaotic CV for AE Modular
Product image 3 for BF-24 DRIFT: controlled, chaotic CV for AE Modular
Controlled chaos to liven up your patches
Synth

BF-24 DRIFT: controlled, chaotic CV for AE Modular

Sold by BF Synths

$99.01

No tax for United States [change]
Coming soon!
Sign up to get notified when this product is available.
Check
Original Design
This product was designed by BF Synths. By buying this product you support original hardware creators.

We proudly present DRIFT, a versatile CV source that has multiple flavors of chaos and also a more straightforward LFO mode.

the basics

Drift offer three different modes of chaotic CV sources. These each follow different digital algorithms generating a different flavor of chaos. In each of these modes, it is possible to set the following parameters with the knobs:

  1. Speed: How fast the output CV moves. Can be controlled with CV input.
  2. Texture: How sudden the changes in CV happen. Low texture leads to smooth curves, high texture gives more spikes/jitters. Can be controlled with CV input
  3. Level: a simple attenuator to set the output CV level.

There is also a fourth, more classic mode, that is the saw/triangle LFO. Here the controls are basically the same, except for the 'Texture' knob, which morphs the LFO from a descending sawtooth to a triangle to an ascending sawtooth wave.

To switch between the three different chaos algorithms and the LFO algorithm, there is a 'MODE' button.

give me more details!!

This module is an adaptation (with permission) from the open source Eurorack module Drift by Free Modular. It uses three different digital algorithms to generate ever changing, never repeating, chaotic patterns. In the original Eurorack manual you can find visualisations an more info on the different modes. Here I explain them in short.

  1. Perlin: based on an algorithm by Ken Perlin, it generates a very smooth but organic unpredictable curve, not unlike a landscape of rolling hills. The texture controls blends in high frequency noise that creates a more 'squiggly' landscape.
  2. Bezier: random points are generated and the texture determines how 'smooth' the CV shifts between these random points. Going from completely smooth gaussian curves to sharp and pointy transitions.
  3. Brownian motion: also known as random walk, at each timestep, the CV can either randomly go one tick up or down. With texture fully up, this creates a very stepped motion, with texture all the way down, all sudden changes get smoothed out.

A quite simple, but honestly very effective module! It is especially fun to patch another slow CV source like 2SLOTH to morph both the 'Speed' and 'Texture' parameter of this module, to create slowly morphing generative patches. It is also great to have a subtle splash of chaos into your filter cutoffs or wavefolders, livening up the sound to something more alive and always slightly different.

Links to code and documentation

Documentation (quinnfreedman.github.io)

Shipping policy

No information available.

The seller

BF Synths

BF Synths logo

Gent, Belgium
0 orders since Apr 29, 2026
BF Synths is founded on the philosophy to support local businesses, with Belgium and France as home bases. What we can do ourselves, we do ourselves. What can be done locally, we do locally. For example, the PCBs are manufactured in Germany, the assembly and front plates are homemade by M4vrick in France.
The initial spark for BF Synths arose when local creator M4vrick sent a message to analog experimenter Keurslager Kurt. Kurt had shared his DIY oscillator on the AE Modular forum, but did not have the technical chops or resources to create a full-fledged, compact module from it. The collaboration resulted in the widely enjoyed 555 Oscillator, and the idea for a wider range of modules was born.
On this page you can also find the DIY Kits from Keurslager Kurt.