Envelopes Block - Panda-Audio Future Impact v3 User Manual

Note:​ When the FI is played solely via its MIDI IN port, the Distortion block has no function.
This is because it is only driven by the audio input signal of your instrument connected at the
INPUT socket.

Envelopes Block

Envelopes are configurable control signals which are used to adjust parameters over time.
The two most common uses of envelopes in synthesizers are to adjust the loudness of the
oscillators and to adjust the filter cutoff frequency. An envelope is made up of distinct
portions called "stages". The most widely used four stages are ATTACK, DECAY, SUSTAIN
and RELEASE (ADSR). (The FI's envelopes have either two or four of these stages,
depending on the mode selected.) The A, D and R stages are time-based parameters
whereas the S stage is a level (or amount) parameter. The stages are described below:
● ATTACK sets the time the envelope takes to rise from zero to maximum after a note
is played.
● DECAY sets the time the envelope takes to decay from maximum back down to the
level set by the SUSTAIN.
● SUSTAIN sets the level the envelope maintains after the decay stage has finished.
● RELEASE sets the time the envelope takes to decay from its current level back down
to zero when a note is released.
The FI has three dedicated envelopes which control the Voltage Controlled Amplifier (VCA),
the Voltage Controlled Filter (VCF) and the Noise Generator respectively. The VCA and VCF
envelope generators have three different modes (VINTAGE, ADSR in RESTART and ADSR
in RESET-TO-ZERO) which are selected using the Envelope Mode slider.
Moving from left to right, the sliders of the Envelopes block are as follows:
● ENV MODE (VINTAGE/RESTART/RESET):
Sets the behavior of both the VCA and VCF envelopes as described below.
● VCA A/(D)/(S*)/R (1...127):
Changes the volume of the synth signal coming from the VCOs dynamically over
time.
● VCF A/D/(S*)/(R) (1...127):
Changes the cutoff frequency of the filter dynamically over time.
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