Moog Matriarch Manual page 5

MAKE THIS CONNECTION
We want to take the MODULATION oscillator and have it move the FILTER up and
down. Our first impulse might be to simply take the WAVE OUT of the MODULATION
section and patch it directly to the filter's CUTOFF 1 IN.
While that certainly gets the filter moving, it doesn't allow us to control the amount of
modulation applied. With this direct patching, the modulation oscillator swings the filter
all the way open and all the way closed.
MAKE THIS CONNECTION
Let's explore a way to apply more subtle modulation. In order to have control over the
depth of modulation, we can use an attenuator.
Note: Any of the attenuators on Matriarch can be used for this.
The ATTENUATOR takes the signal applied to its input—in this case a sine wave
oscillating between -5 volts and +5 volts—and decreases it. With the attenuator knob
at noon, the signal is decreased to zero, effectively silencing it. Moving the attenuator
knob clockwise a little bit will raise the signal to oscillate between –1 volt and +1 volt
(for example). Moving it fully clockwise will pass the original signal through with no
attenuation: -5 volts to +5 volts.
First Steps | 5