Nov 22, 2010 at 11:03pm


1-I have use the video-theremin tutorial coming from maxfl
2- I have difficulty with the launch of my midi notes I mean sometime it
3- Is it possible to change parameters ofmy plug-in with the v-t like the cutoff frequency etc.
4- Is it possible to use the video-theremin with an audio track (i.e to launch a clip or even to changethe volume)

Thanx Ben

Nov 28, 2010 at 9:09pm

Hi Benoit

yes this is possible

this is a tutorial to give you some clues and examples of what m4L can do.
Try to understand each steps of this device then you will be able to customize it for you needs
Don’t give up even if the you find the Live API and Live Object Model cryptic sometimes, we all do ;-)


Dec 1, 2010 at 3:02pm

do you have an advice to make possible using the video-theremin and launching a clip…. I think with the tutorial of Michael Chenetz I get the idea of the API but if you have a clue about the theremin-launching clip it will be very appreciated

Dec 1, 2010 at 7:55pm


a) The theremin sends 2 float values ( x & y)
b) Launching a clip require a bang

so you have to find an object who could turn a value into a bang.
there are many

here is an example

– Pasted Max Patch, click to expand. –

in audio domain there is the [thresh~] object to detect such thing, you can turn the float from the Theremin into audio rate stream, just have a look at the [thresh~] help patcher.

good luck, have fun



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