17
FM Synth Voice:
Summary:
The secondary oscillator, called the
Modulator
in an FM
patch, is modulating the frequency of
cruïnn
, called the
Carrier
in an
FM patch. The sequencer or keyboard sends voltages to
cruïnn
while
simultaneously triggering the envelope generator. The CV output of the
envelope generator opens the filter and VCA, allowing
cruïnn’s
signal
to pass through. More traditional East Coast patches would incorporate
separate envelope generators for the filter and VCA.
Audio Path:
•
Create an
East Coast Synth Voice
audio path.
Control Path:
•
Create an
East Coast Synth Voice
control path.
•
Connect the sine waveform of a separate oscillator to the
FM
input
of
cruïnn
.
•
Set the
FM Attenuator
to a desired position.
•
Set the
Lin/Exp
toggle to a desired position.
•
Most East Coast synthesizers were traditionally limited to linear
frequency modulation only.
1V/Oct Signal
Gate Signal
Output
