User Guide

When the fader is moved, the OSC message /resfader.rezzo <value> is transmitted by the

Lemur. In the Max patch, a route object captures this value and uses it to adjust the filter

resonance.

The resonance parameter of the lores~ object actually goes from 0 to 1. But the interesting

range is between 0.8 and 1. Actually 1 is a little too interesting: the filter goes into self-

oscillation. So, the effect of rezzo is to restrict the the resonance range between 0.79 and

0.97, and add some non-linear curvature.

We’re doing something similar with the cutto variable inside the trig object.

cutto = pow(trig.x, 1.7) * 1000

Again, we apply non-linearity and scaling, so the output of the pad is now from 0 to

1000 instead of 0 to 1. However, what you might not realize about this example is that

the Lemur itself is generating the filter envelope. The pad object’s ADSR envelope is

changing the x values continuously over time. But as you can see, we do not transmit the

raw 0-1 values from the pad, since the x variable checkbox is not checked. Instead, the 0-1

values are passed on to the cutto variable where they made non-linear in a way

appropriate for frequency, scaled, and finally transmitted to the computer.

Click on the trig Pad object in the JazzEditor, then click Behavior tab to see the values for

the envelope.

Using List Variables

We’re going to expand this example, and create controls for Attack, Decay, Sustain, and

Release. This will show how we can make use of list variables that consist of more than

one value. Lists are used by the MultiSlider, Multiball, Pads, and Switches objects.