Sonic Charge Microtonic User Manual

Page 18

‣

Noise Envelope Mode

Choices: Exponential, Linear, Modulated

(clap)

Default: Exponential
The

Oscillator and Noise Section have separate amplitude envelope generators.

The envelope generator for the noise section is more advanced and features three
different modes

(or shapes)

. The

Exponential Mode is the default choice and the

most common mode. It creates a natural sounding fade in its decay phase. Its at-
tack phase is also exponential which is not so common

(most synthesizers have a

linear attack and an exponential decay)

. A long exponential attack will suggest a

sound that has been reversed in time or the sound of a fast engine “swooshing
by” at great speed. The

Linear Mode creates a more conventional attack, but its

decay acquires a “gated” effect, which is great for simulating gated snare drums.
Finally, the

Modulated Mode is tailor-made for handclaps. It works by re-

triggering the envelope in rapid successions before going into the decay phase. In
this mode, the attack setting controls the time until decay phase by changing the
number of triggers and the time between them in.

‣

Noise Attack

Range: depends on noise envelope mode, exponential and modulated: 0ms to
10 000ms

(10s)

, linear: 0ms to 6 666.67ms

Default: 0ms
The

Noise Attack parameter controls the total time for the attack phase of the

noise envelope. For the

Exponential and Linear envelope modes, this is the time

it takes the noise envelope to go from silence to maximum amplitude. For the
Modulated Mode this is the total time spent triggering short “clap bursts” until

the decay phase kicks in.

(See above for more information.)

An attack setting of

zero eliminates the attack phase of the envelope and makes the drum patch trig-
ger at full amplitude directly.

‣

Noise Decay

Range: depends on noise envelope mode: exponential and modulated: 10ms to
10 000ms

(10s)

, linear: 6.66667ms to 6 666.67ms

Default: 316.23ms / 210.82ms
The noise decay parameter controls the decay time, or the time it takes the enve-
lope generator to go from maximum amplitude back to silence.

(The time for an

exponential decay is an approximate since, in theory, an exponential decay never

reaches zero.)

Velocity Sensitivity Section

The

Velocity Sensitivity Section controls how MIDI velocities and pattern accents

affect the sound. You have three different settings; two of which controls the vol-
umes of the oscillator and the noise respectively, and one that controls the amount
of pitch modulation on the oscillator. If all settings are zero, MIDI velocities and ac-
cents do not affect the sound at all.

‣

Oscillator Velocity Sensitivity

Range: 0% to 200%
Default: 0%
This parameter decides how MIDI velocities and accents affect the volume of the
oscillator. A setting of zero percent means that velocities

(and accents)

do not af-

fect the volume at all. Higher percentages makes velocities

(and accents)

affect

the volume more. A setting of 100% means that the oscillator is totally silent if a

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