Filter Settings; Formant Motion Function - Korg EXB-RADIAS for M3 Owner's Manual

5. Use "Gate Sens" to adjust the gate sensitivity. Adjust
this so that the output of the vocoder is not interrupted
in an unnatural way.
6. Use "Threshold" to cut the noise when there is no
input. Raising this setting will make it easier for the
sound to be cut. Adjust this so that noise is not
obtrusive when you're not speaking into the mic.
7. Use "Modulator HPF Gate" and "Modulator High Mix"
to adjust the high-frequency portion of the input
source that will be mixed into the vocoder output.
Use Modulator HPF Gate to specify whether the high-
frequency portion of the input source mixed into the
vocoder output will be heard only while the internal sound
generator is heard, or whether it will always be heard as
long as there is an input from the Source.
Use Modulator High Mix to specify the amount of the high-
frequency portion of the input source that will be mixed into
the vocoder output. Raising this setting will emphasize the
consonants of your voice.

Filter settings

Here you'll adjust the settings of the modulator's envelope
follower and the carrier's band-pass filters (synthesis
filters). These settings are made in the PROG P6–2: Vocoder
page.
Filter (synthesis filter and envelope follower set-
tings)
1. Use "Formant Shift" to change the shift amount for the
band-pass filters. By shifting the filters you can produce
dramatic changes in the character of the vocoder
output.
2. Use "Frequency Offset" to adjust the offset to the cutoff
frequency of the band-pass filters.
You can adjust the filter shift amount in a range of ±2 steps.
In conjunction with Formant Shift, this lets you shift the
cutoff frequency in a range of ±4 steps. (☞p.44)
3. Use "Resonance" to specify the amount of resonance
for the band-pass filters.
4. Use "Mod Source" to select the modulation source that
will be applied to the cutoff frequency offset
("Frequency Offset"), and use "Mod Intensity" to
specify the depth of modulation.
5. Use "Env. Follower Sens" to adjust the sensitivity of the
envelope follower.
Higher settings will produce a smoother rise in the vocoder
output and a longer release sound.
Band 1–16: Pan and Level (output level and pan
setting for each band of the synthesis filter)
1. Use "Level" to adjust the output level of each filter.
2. Use "Pan" to adjust the pan of each filter.
Editing a program Editing a vocoder program

Formant Motion function

The formant motion function lets you use data such as a
previously-recorded voice as the input to the modulator,
causing the vocoder to produce sound. This lets you play
the vocoder without having to vocalize into the mic.
The EXB-RADIAS contains preloaded information for
sixteen sets of formant motion data.
Assigning formant motion data to the modulator
Here's how to play the vocoder by using the factory-set
formant motion data.
1. In Program mode, select a vocoder program.
☞ "Vocoder program" on page 3
2. Access the PROG P6–1: Carrier/Modulator page.
3. Set "Modulator" to Formant Motion.
4. Use "Select" to select the desired formant motion data.
You can select from sixteen choices: Formant Motion 00–15.
5. Use "Play Mode" to specify how the formant motion
data will play back.
If you select Trigger Reset, the formant motion data will
reset to its beginning each time you play a note.
6. Play the keyboard.
The vocoder will sound using the formant motion data.
Recording your own formant motion data
Here's how you can record your own formant motion data.
1. Connect a mic to the rear panel AUDIO INPUT 2 jack,
and use "Program Select" to select a vocoder program.
☞ "Vocoder program" on page 3
2. Adjust the mic input level.
☞ "Vocoder program" on page 3
3. Access the PROG P6–1: Carrier/Modulator page.
4. Turn "Formant Motion REC" On, and speak into the
mic.
Recording will begin when you turn Formant Motion REC
On.
5. Turn "Formant Motion REC" Off to stop recording.
Recording will stop automatically if the memory
becomes full (approximately 7.5 seconds).
6. Set "Modulator" to Formant Motion.
7. Play the keyboard.
The vocoder will sound using the formant motion data you
recorded.
If you want to keep the data you recorded, you'll need to
write the formant motion data. For more information, please
see "Write Formant Motion Data" on page 46.
13