
34 Parameters
Time
Delay
Fade in
Amplitude
Figure 16: Fade in feature of the LFO.
4.2.6 The Envelope Module
Each row of Ultra Analog VA is equipped with two envelope generators, the Filter Env and Amp
Env modules which are used to modulate the Filter and Amp modules. Both envelope generators
have the same user interface and offer the same functions. Envelopes are generated through the use
of a standard ADSR (attack, decay, sustain, release) approach including MIDI velocity modulation
and looping capabilities.
A D
S
R
Sustain Time
Time
Amplitude
Exp
Lin
Key Released
Figure 17: Response curve of an envelope generator. Broken line: exponential, full line: linear.
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