Roland VS-2000 Appendices page 47

Vocoder
The vocoder creates "talking instrument" effects. To use Vocoder, input an instrumental sound into the left channel and a vocal
sound into the right channel. The instrumental sound is split into ten frequency bands to be processed according to its frequency
components.
fig.08-14
Input L
(Instrument)
Input R (Mic)
Instrumental sounds are input into the L-channel side of the effect. Therefore, it is required to insert and connect "Lch" of the effect to the channel handling
instrumental sounds. Similarly, vocal sounds are input into the R-channel side of the effect. Insert and connect "Rch" of the effect to the channel handling vocal
sounds.
Tips for using Vocoder
It is a good idea to choose instrumental sounds containing a lot of overtones. Recommended sounds include those with saw-
tooth waveforms such as strings and distorted guitar sounds.
Parameter (full name)
Voc (Vocoder): The pitch is specified with the instrumental sound while the tone is output in vocals.
Char 1–10 (Voice Characters)
CHO (Chorus):
Sw (Switch)
Rate (Rate)
Depth (Depth)
PreDLY (Pre-Delay)
FBLvl (Feedback Level)
FX Lvl (Effect Level)
DirLvl (Direct Level)
Chorus
10 Band Vocoder
Setting Function
0–100 Sets the volume by frequency band. These are used to change the vocoder tone.
Adds spaciousness and depth to the sound.
On, Off Turns the chorus on or off.
0.1–10.0 Hz Sets the rate of modulation.
0–100 Sets the depth of modulation.
0–50 ms Sets the time delay from when the direct sound begins until the processed sound is heard.
-100–100 Sets the amount of the chorus sound should be returned to the chorus input.
-100–100 Sets the volume of the chorus sound.
-100–100 Sets the volume of the direct sound.
Output L
Output R
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