11.3

Table Of Contents
MONOTONE BASS SYNTHESIZER330
Signal flow
The picture below shows the basic signal flow in Monotone:
Monotone signal flowchart.
The “heart” of Monotone is the Oscillator section, which generates the basic audio signal.
There are two oscillators in Monotone, that can produce a number of traditional “analog” waveforms - plus a Noise
generator, which produces white noise. The two oscillators can be detuned, to create a fatter sound. Oscillator 2
can also frequency modulate Oscillator 1, for metallic/bell type sounds.
The signal from the Oscillator section is routed to the Filter.
The Filter in Monotone is a classic 24 dB/octave lowpass ladder filter, with overdrive control.
The signal from the Filter is routed to the Amplifier.
The Amplifier is controlled by a standard ADSR (Attack-Decay-Sustain-Release) envelope.
The signal from the Amplifier is then routed to the Chorus module.
This module generates a chorus effects, to make the sound fat and wide.
The signal from the Chorus is then routed to the Delay module.
Here you can add audio delay effects.
The remaining section in Monotone (Envelopes and LFO) can be used for modulating some Oscillator and
Filter parameters.
Filter
: audio signal
: control signal
Master
Volume
Oscillator 2
SemiOCT
LFO
(pitch)
Wave
LFO
(Freq)
ENV
(Freq)
KEY VEL
Chorus
SpreadRate
Drive Freq Res
Amplier
Envelope
Amount
Amount
OSC
MIX
Oscillator 1 Noise
LFO
OCT
Wave
DetuneFM Env
VEL
Shape
Rate
A D S R
A D S R
Delay
Feedb.Time