AtoVproject - cLFO

Written By Arthur Gibert

We are pleased to present our complex Low Frequency Oscillator (cLFO)

Modulate your modulation they said! The cLFO is all about that.

The cLFO contains two CV-controlled LFOs that are intermodulating and are combined into a ring modulator.

The module has been specifically designed to promote cross and self-patching. For example, you can create continuously variable waveforms, exponential waveforms, bouncing ball effects, fantastic stereo effects and lots more!

Each LFO has Triangle, Saw and Square wave outputs, and the saw of LFO2 has been phase-inverted as to give some further variation. The triangle of LFO1 is normalled to the CV input of LFO2 which is attenuated. We then added a ring modulator to the mix! This is a patching technique that we’ve utilized in our own musical projects for many years.

We wanted to introduce this technique to more people and generally promote curiosity to use certain effects that are usually audio-oriented on modulations.

Ring modulating LFOs creates very interesting modulations that have the same rhythmical feel as traditional LFOs yet being more complex and never quite repeating.

This LFO can produce a wide range of modulation frequency. The potentiometer allows you to set the speed anywhere from 2 minutes up to 20 cycles per second. With CV the frequency can be taken to the extreme, down to 13 hours and up to 400 cycles per second !

This module is available with Silver and Black panels either preassembled or as a DIY kit.

Stay weird and wired,

Arthur and Chris

 Specifications

  • Two analog LFOs

  • Control voltage over LFO frequency.

  • Waveform outputs: Triangle, Square, Sawtooth (LFO1 - ramp down; LFO2 ramp up)

  • Fequency range :

    • 2 minutes - 0.05s (20Hz) without CV

    • 13 hours to 400Hz with CV

  • Ring Modulator (aka four quadrant multiplier aka bipolar VCA)

  • Size: 6hp

  • Depth : 25mm with included power cable

  • Power consumption

    • +5V : 0mA

    • +12V : 52mA

    • -12V : 60mA




    Acknowledgement

    We would like to express our deepest gratitude and appreciation to all the testers who dedicated their time and expertise to help us refine and improve the cLFO.

    Your commitment and valuable insights have been hugely important to make the cLFO what it is now.




    From the bottom of our hearts, a huge thank you to our beta testers:

    Marius Krämer aka Bassinfected owner of the label Filter Movement and incredibly skilled mixing and mastering engineer. 




    Felipe Vareschi is a great experimental electronic musician based in Berlin. His work is widely multidimensional and includes electro acoustics, modular, field recordings, collaboration with dancers, sensor-based sound art installations and much more! Not only this but Felipe is also an educator at catalyst.berlin in Music & Sound Design for Visual Media.

    Finally, Felipe is a fantastic mastering engineer and runs the Berlin studio vareschimastering.com.

    Their fantastically detailed feedback is incredibly useful to us and helps us take our designs to the next level. Don’t hesitate contacting them if you need their services and give them some love and a follow on Instagram

     

Arthur Gibert
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