12
Triple FM Synth Voice:
Summary: troika’s
oscillator 2, called the
Modulator
in an FM patch,
is modulating the frequency of
troika’s
oscillator 1, called the
Carrier
in an FM patch.
troika’s
oscillator 3, which is a secondary
Modulator
in an FM patch, is modulating the frequency of
troika’s
oscillator 2. The
sequencer or keyboard sends voltages to
troika
while simultaneously
triggering the envelope generator. The CV output of the envelope
generator opens the filter and VCA, allowing
troika’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 using the sine
waveform of
troika’
s oscillator 1.
Control Path:
•
Create an
East Coast Synth Voice
control path.
•
Connect the sine waveform of
troika’s
oscillator 2 to the
Linear FM
Input
of oscillator 1.
•
Connect the sine waveform of
troika’s
oscillator 3 to the
Linear FM
Input
of oscillator 2.
•
Set the
Linear FM Attenuators
of
troika’s
oscillator 1 and oscillator
2 to desired positions.
Output
1V/Oct Signal
Gate Signal
