Operation Manual

6.94 VADSR 153
Note: See also the ADAR, ADSR and VADSR modules.
6.94 VADSR
The VADSR acts exactly like the ADSR module except that the VADSR
has four additional inputs for controlling each phase of the envelope. It also
had four more knobs for adjusting the gain of these four inputs. The first,
second and fourth modulation signals affect the duration of the attack decay
and release phases: the higher is the amplitude of the modulation signal, the
shorter is the attack, decay or release time; the lower is the amplitude of the
modulation signal, the longer is the attack, decay or release time. The third
modulation affects the sustain level.
Typical Use
The VADSR is typically used for generating amplitude envelopes through a VCA, or spectral
envelopes by modulating the frequency of the filter modules. The modulation entries can be con-
nected to the velocity output of a Vkeyboard or a Sequencer.
Note: See also the ADAR, ADSR and VADAR modules.
6.95 Vbandpass2
The Vbandpass2 module is a voltage-controlled second-order band-pass
filter (-6dB/octave). This module has one output, the filtered signal, and three
inputs. The first input is the signal to be filtered, while the second and third
inputs are modulation signals which are used to vary the center frequency of
the filter. The amplitude of the two modulation signals is adjusted with the two
gain knobs mod1 and mod2 respectively.
Tuning the Center Frequency
The center frq knob tunes the center frequency to the desired level. The vari-
ations in center frequency caused by changes in the modulation inputs are
relative to this level. The resonance knob is used to emphasize the frequencies near the center
frequency as is shown in Figure 31 under Bandpass2.