NANO Modules - València 2020 ©
QUART
is a
Quadruple Attack-Decay Envelope & Low Frequency Oscillator,
which means it has 4 independent functions that can work as Low Frequency
Oscillators or Attack-Decay Envelopes depending on whether the Trigger Inputs are
connected or not.
An
Envelope
describes how a sound changes over time. Synthesizers use
envelopes to create shapes designed for making musical sounds. You can adjust the
envelope’s controls to tell it what kind of shape to make. It normally relates to the
amplitude (volume), but it may also involve elements such as filters (frequencies) or
pitch.
QUART is an
AD Envelope (
Attack & Decay), meaning that it consists of two phases,
Attack & Decay (also called Rise and Fall). When the AD is triggered it starts a rising
phase until it reaches its maximum level (Rise) and then it decreases to its minimum
level (Fall), but unlike an AR it has no sustain segment.
The output of an AD generator lasts for a
fixed amount of time,
regardless of
wether or not the key that triggered it is still being held down.
QUART uses an
Exponential Shape
for the envelope signal, found on many classic
envelope generators, which tend to have a more
plucked character.
This is best
used with linear VCAs (such as our ALT Quad VCA).
LFOs
make a repeating change to some aspect of the sound. Although the LFO is a
type of oscillator, we can't hear its output. Instead, the output is used as a control
signal for changing some parameter of a synth or an effect.
QUART
Description
time
EXPONENTIAL
AD ENVELOPE
v
oltage
rise
fall
max. level
Fig.1 Exponential AD Envelope Signal Shape
Summary of Contents for QUART
Page 1: ...QUART Quick guide...
