Modifiers; Voltage-Controlled Filter - Moog THE SOURCE Owner's Manual

MODIFIERS
A modifier alters or attenuates the basic output of the signal sources. A modifier characteristically has a signal
input and a signal output; the signal from the oscillator(s) and/or noise must "pass through'* the modifier.
There is theoretically no limit to the number of modifiers that may be used in a synthesizer. The Source employs
two: a voltage-controlled filter and a voltage-controlled amplifier.
VOLTAGE-CONTROLLED FILTER
The filter section of The Source changes the tone color of the signal sources.
The Source employs a low-pass filter. As the name implies, this filter passes low frequencies and rejects high
frequencies. The point at which frequencies start to be rejected is called the cutoff frequency. This cutoff frequency
may be adjusted manually or electronically.
Touch program Q :
VOLTAGE CONTROLLED FILTER
I I KB TRACK
32' I I 16' I
FOOTAGE
[3 El 0
I SING IMUL1
TRIGGER
FILTER CONTOUR
32' I I 11 I
FOOTAGE
MEMORY
INTERVAL I
OSCILLATOR BANK
LOUONEBB CONTOUR
MODIFIERS
REC1 REC2 :I^'-STGP CONTINUE -^-PLAY 1 PLAY Z ■ REC PlAY . ARPEGGIO S4H S & H FILT^ AUTO TR(G EXT.TRIG SAVE VERIFY LOAD
1. Touch CUTOFFiFREQ
PROGRAMS
in the filter section. Hold down any key.
2. Turn the incremental control clockwise. As the cutoff frequency is set higher, more of the high frequencies
of the oscillator signal are heard, and the sound becomes "brighter."
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