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EQ and Filters 026: Vocoder
787
2. Go to the Global P0: Basic Setup-Audio page.
3. For the Audio Input to which you connected the
mic, temporarily set Bus Select to L/R.
This lets you listen to the mic input while adjusting the
LEVEL control.
4. While talking into the mic, use the LEVEL knob to
adjust the level as high as possible without
distortion.
After adjusting the LEVEL, you can change the bus
settings for use with the vocoder:
5. For the Audio Input to which you connected the
mic, turn Bus Select Off, and set FX Ctrl Bus Select
to 1.
6. In the Vocoder effect, set the MODULATOR
Source to FX Control Bus 1.
7. Route a synth sound into the Vocoder effect.
With these settings, the sound from the mic will be
used as the modulator. While you play, speak into the
mic; it will sound as though the instrument is talking.
If the sound is distorted, adjust the CARRIER Trim
and/or MODULATOR Trim.
CARRIER
Note that the left and right inputs are always summed
into the Carrier, regardless of the MODULATOR
Select parameter below. To use a separate signal (such
as a mic input) as the Modulator, route it through FX
Control Bus 1 or 2.
Trim [0…100]
Sets the Carrier input level.
Noise Level [0…100]
This controls the level of the built-in noise generator.
You can mix this with the Carrier input, or set the
Carrier Trim to 0 and use only the noise, if desired. You
can also modulate the Noise Level using Dmod,
controlled by the Source and Amount parameters
below.
Source [Off…Tempo]
Selects the modulation source for the Noise Level.
Amount [+/–100]
Sets the modulation amount for the Noise Level.
MODULATOR
Trim [0…100]
This controls the input level of the Modulator.
Source [Input, FX Control 1, FX Control 2]
Selects the signal to use as the Modulator input.
Input uses the input to the Vocoder effect. This is good
when you want the input to “vocode” itself.
FX Control 1 and 2 use the signal from the FX Control
Buses. For classic vocoding effects, such as a mic input
as the modulator and a synth as the carrier, you must
use one of these buses.
Select [L/R Mix, L Only, R Only]
Selects whether to use the left/right mix, only the left
channel, or only the right channel of the Modulator
input.
VOCODER
Formant Shift [–2…+2]
This lets you offset the Carrier filters, so that they are
either higher or lower than the Modulator filters. This
produces effects similar to transposing a sample, and
produces significant changes in the overall character.
Response [0…100]
This controls how quickly the vocoder responds to
changes in the Modulator. The default of 60 generally
works well for most purposes.
Lower values produce slower response times, which
can produce interesting sweeping effects. Higher
values are useful for percussion, but can cause jittery
response with smoother Modulator signals.
Low Gain [dB] [–12…+12]
Sets the low-range output level of the vocoder.
High Gain [dB] [–12…+12]
Sets the high-range output level of the vocoder.
Modulator High Mix [0…100]
This lets you mix a highpass-filtered version of the
Modulator directly to the output, bypassing the main
vocoder effect. When using a voice as the modulator,
this can increase intelligibility.
OUTPUT
This is the standard effects output section, with
modulatable control over wet/dry balance. For more
information, see “OUTPUT” on page 764.