Moog Music Slim Phatty - Manual (Page 16)

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Slim Phatty User’s Manual - The Components
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Slim Phatty User’s Manual - The Components
D. The Modulation Section
Modulation is the heart of making interesting sounds with analog subtractive syn-
thesis. The SP’s Modulation section opens up a world of modulation possibilities
that were not available on the original Minimoog. The Modulation section allows
you to select from six modulation sources, specific one of four destinations, and
set the modulation amount. The output of the Modulation section is controlled by
the Modulation Wheel of your MIDI controller. You can also enable the MODU-
LATION control knob to act as a Modulation Wheel control by pressing and hold-
ing the AMOUNT switch.
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 engaged.
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. Pressing and holding the LFO RATE
switch enables the Tap Tempo function. When Tap Tempo is enabled, the LFO RATE switch will blink on and
off. To escape this function, press and hold the LFO RATE switch until the light stops blinking. For more on
the Tap Tempo function, see Tap Tempo on page 25.
Amount:
When the AMOUNT switch is selected, the analog edit control is used to adjust the maximum amount of
modulation controlled by the Modulation Wheel. Pressing and holding the AMOUNT switch enables the
MODULATION control knob to act as a MOD WHEEL controller. When the MOD WHEEL function is
enabled, the AMOUNT switch will blink on and off. To escape this function, press and hold the AMOUNT
switch until the light stops blinking.
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