Access virus indigo ii Manuale Utente

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CHAPTER 10
The Vocoder of the VIRUS
VOCODER RELEASE
KNOB: FILTER DECAY
DEFAULT: 0 (LEFT)
The release time of the envelope follower. This
parameter controls how fast the carrier bands
reflect if a certain frequency disappears from
the spectrum of the modulator signal. Here,
higher values result in a kind of sustain in the
carrier bands. High attack and release times
lead to less speech recognition, although it is
possible to create a really nice sounding syn-
thesizer pads with.
VOCODER SOURCE BALANCE
KNOB: FILTER BALANCE
DEFAULT: 0 (MIDDLE)
FILTER BALANCE creates a mixture of the voc-
oder signal and the modulator-respectively car-
rier signal. Turning FILTER BALANCE to the left
adds a certain amount of the carrier signal to
the vocoder signal. A turn to the right adds the
modulator signal. 
 
Turning the FILTER BALANCE hard left or
right can be used to monitor the vocoder’s input
signals only. 
VOCODER SPECTRAL BALANCE
KNOB: FILTER SUSTAIN TIME
DEFAULT: 64 (MIDDLE)
Spectral balance between the higher and lower
frequencies of the vocoder signal. This parame-
ter works similar to a simple equalizer, which is
e.g. capable to increase the quality of speech.
The Spectral Balance highly influences the
overall character of the vocoder.
Several vocoder related parameters can be
modulated by LFO-1 and LFO-2
-  LFO 1 RESO 1+2  modulates the bandpass
filter quality of the modulator and carrier
bank.
-  LFO 2 FILT 1  modulates the bandpass filter
frequency of the carrier bank.
-  LFO 2 FILT 2  modulates the bandpass filter
frequency of the modulator bank.