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Korg MMT RADIAS Owner's Manual: P07 Filter; P08 Modulator

Synthesizer/vocoder.
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P07 FILTER

Here you can edit the parameters for all the band pass
filters of the carrier, and the envelope follower of the
modulator. These are the parameters that you will use
most frequently when creating the desired character of
vocoder effect.
P07–1: FILTER
1: FrmntSft (Formant Shift)  FRMNT SHIFT 
Shifts the cutoff frequencies of each of the carrier's band
pass filters. This will significantly change the character
of the vocoder output.
2: FcOffset (Frequency Offset)  FC OFFSET 
Adjusts the cutoff frequency of each of the carrier's band
pass filters.
How "FrmntSft" and "FcOffset" are related
When "Formant Shift"=0 and "FcOffset"=0, the re-
sponse of the carrier filters will match the cutoff fre-
quency of the modulator filters. The filter response is
shifted upward or downward in two discrete steps by
the "Formant Shift." This can be adjusted upward or
downward another two steps by using "FcOffset," giv-
ing you a total of four steps of adjustment upward or
downward.
BPF
BPF
BPF
BPF
BPF
BPF
7
8
9
–63
0
Cutoff (the range in which BPM 8 will change)
Formant Shift:+2
BPF
BPF
7
–63
3: Resonance  RESONANCE 
Sets the amount of resonance for each band pass filter.
Higher values will boost the region near the cutoff fre-
quency.
[–2...+2]
[–63...+63]
Frequency
+63
BPF
BPF
BPF
BPF
8
9
Frequency
+63
0
Cutoff (the range in which BPM 8 will change)
[000...127]
4: FcModSrc (Fc Modulation Source)  FC MOD SRC 
Selects the modulation source that will be applied to
"FcOffset." The available modulation sources are the
same as the modulation sources for program parameter
virtual patches ("Source").
For details, refer to p.91 "Source Ü SOURCE á."
5: FcModInt (Fc Modulation Intensity)  FC MOD INT 
Sets the depth of modulation that is applied to "FcOff-
set."
6: E.F.Sens (Envelope Follower Sens)  E.F. SENS 
Sets the envelope follower sensitivity for the modulator.
Lower values will allow the rise and fall of the input sig-
nal specified by P08–1: MODULATOR to be detected
more quickly.
Higher values will produce slower change, creating a
sound with a slow attack and a long release. With a set-
ting of 127, the tonal response of the first signal that is in-
put will be held, and the sound will continue with this
character regardless of whether there is an input signal.
If you set this to a value of 127 when there is no in-
put, there will be no output even if you subse-
quently input an audio signal.
The tonal response captured when you set this pa-
rameter to the held state (127) can be maintained
by the RADIAS as program data, but in order to
record this tonal response data as program data in
the RADIAS Sound Editor, you will have to per-
form a program dump operation.

P08 MODULATOR

These are the parameters for the modulator.
The most popular way to use a vocoder is to use a voice
as the modulator, creating the impression that an instru-
ment is speaking.
P08–1: MODULATOR
1: Modulator (Modulator Select)  MODULATOR 
This setting will affect the maximum number of
voices.
6. Vocoder Parameters
[EG1...MIDI5]
[–63...+63]
[000...127]
[Audio, FrmntPly]
105

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