Effect Guide
734
Compressor (COMBINATION mode)
Compressors, limiters, and gates use the level of the audio
input to control the level of the audio output. For these
effects, the envelope detection source can be either the audio
input itself (the usual method) or FX Control Bus 1 or 2.
The diagram below shows a split Combination, with a pad
on the bottom of the keyboard and a distorted guitar on the
top. The output of the OD/High-Gain Wah effect controls the
action of the pad’s compressor, so that when the guitar is
played, the level of the pad decreases automatically. To do
this:
1. Set up the Timbres and effects as shown in the
diagram below.
2. Set IFX2’s Ctrl Bus to FX Ctrl1.
This sends the output of IFX2 to FX Control Bus 1.
3. In IFX1: Stereo Compressor, set the Envelope Source
to FX Ctrl1.
Now, the compressor will still process the input from the
pad, but the amount of compression will be controlled by the
guitar (through IFX2).
Vocoder (PROGRAM mode)
Vocoder effects produce their distinctive sound by using an
audio signal (the modulator) to modulate a different audio
signal (the carrier). In the diagram, the combined output of
OSC1 and 2 is the carrier, and the audio input from a mic is
used as the modulator to produce a “speaking instrument”
type of effect. To do this:
1. In the Program, set Bus Select to IFX1.
This sends the output of the Program to the Vocoder.
2. For the Audio Input, set the FX Control Bus (0–8c) to
FX Control 1.
This sends the audio input to FX Control Bus 1.
3. In IFX1: Vocoder, set the Modulator Source to FX
Control 1.
Now, through FX Control Bus 1, the audio input is the
modulator for the vocoder.
IFX1
002: Stereo Compressor
Timbre1
: Pad
Bus Select
: IFX1
Ctrl Bus
(FX Control Bus)
: FX Ctrl 1
Envelope Source
: FX Control 1
Compressor (Combination)
Bus Select
: L/R
(FX Control Bus1)
Timbre2
: Guitar
split
IFX2
027: OD/
Hi-Gain Wah
Bus Select
: IFX2
Bus Select
: L/R
Program
B
Program
A
IFX1
026: Vocoder
OSC1&2
Bus Select
: IFX1
FX Control Bus
: FX Ctrl1
Modulator Source
: FX Control 1
Vocoder (Program)
Bus Select
: L/R
(FX Control Bus1)
Audio
Input1
(Carrier)
(Modulator)
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