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REF is a Max For Live envelope follower with advanced features. It allows you to modulate anything you want in Ableton Live: other devices, the user interface, and third party plug-ins, using sound as source.

You can shape the incoming audio source with the low/high pass filter, listening the source in peak or rms modes, then design the envelope exactly how you need it, using tools as relative/absolute modes, linear/logarithmic modulation, and positive/negative directions. You can even work on your envelopes with standard EG parameters as attack, hold, release, and a global delay time.

REF uses a big display to give you an accurate visual feedback: it will help you to check the incoming audio signal, set the threshold level, and view the real envelope generated, which will control the chosen target parameter.

REF is a great tool for any kind of modulation: kick/bass side-chain combinations, driving filters, and experimental uses asking for controlling parameters from an audio source.

Developed on the Max 6 engine, taking advantage of gen~, REF supports both 32 and 64 bit mode.

No external objects are used in REF.



Filter your Source

use lo/hi-pass filter to listen to the signal frequencies you need  

Envelope Design Tools

peak or rms following mode. Create linear or logarithmic envelopes, with relative or absolute ranges!


filter signal amplitude to create only the envelopes you need

Envelope Time Functions

Delay/Attack/Hold/Release will help you to create amazing control signals

Gen~ Powered

the best performance possible

Select your target

modulate any parameter in your Live set with just a click!



Manuals currently available in English, Italiano and Français.

System Requirements

  • Ableton Live 9.0.4 or higher
  • Max For Live (Max 6.1.2 or higher)
  • OsX and Windows compatible

news & tips about REF

4.50 out of 5

2 reviews for REF

  1. 4 out of 5

    (verified owner) – :

    REF is awesome!!!!! one of the tools i’ll use the most! it gives so many possibilities!! thanks a lot for having created it!
    if you are interested check out my new remix https://soundcloud.com/lucamellorella/scream-the-sawlution-bootleg-1

  2. 5 out of 5


    Oh No I missed it by an hour! :(

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