Moog stage ii Guida Utente

D.  The Modulation Section 

Modulation is the heart of making interesting sounds with analog subtractive 
synthesis.  The LP’s Modulation section opens up a world of modulation possibili-
ties that were not available on the original Minimoog.  The Modulation section 
allows you to select from six modulation sources, four destinations, and set the 
modulation amount.  The output of the Modulation section is controlled by the 
Modulation Wheel.

 

To try out a simple modulation effect, make the following settings:

 

- Set the LFO RATE to 6 Hz (about 11 o’clock on the analog edit control)

  - Set the SOURCE to Triangle wave
  - Set the DESTINATION to Pitch
  - Set the AMOUNT to 50%

 

(about 10 o’clock on the analog edit control)

   

These settings will produce a vibrato effect with variable depth when the
Modulation Wheel is pushed forward.

Section Controls:

LFO Rate:
When the LFO RATE switch is selected, the analog edit control is used to adjust the frequency of the LFO. 
The frequency is adjustable from 0.2 Hz to 500 Hz.

 

Since the LFO rate extends well into the audio range, 

this allows the LFO to be used for clangorous (FM-like) modulations.

Amount:
When the AMOUNT switch is selected, the analog edit control is used to adjust the maximum amount of 
modulation sent to the Mod Wheel.

Source:  
The SOURCE switch selects the source of the modulation.  Each time the switch is pressed, it advances to 
the next modulation source, as indicated by the corresponding LED.  Four of the selections allow you to use 
the LFO as a modulation source.  When any of the LFO waves is selected, the associated LED will flash in 
time with the LFO rate.  The available Source selections are: 

 

 

 

- LFO Sawtooth Wave

 

 

 

- LFO Square Wave 

 

 

 

- LFO Triangle Wave 

 

 

 

- LFO Ramp Wave

 

 

 

- Filt. Env. (Filter Envelope)/Sample & Hold

 

 

 

- Osc 2 (Oscillator 2)/Noise

Destination: 
The DESTINATION switch selects the destination of the modulation. The modulation destination is chosen 
in the same manner as the source. The modulation destination selections are:

 

 

 

- Filter (affects filter cutoff)

 

 

 

- Pitch (affects the pitch of both oscillators)

 

 

 

- Wave (affects the waveform of both oscillators)

 

 

 

- Osc 2 (affects the pitch of Oscillator 2)