Env [Edit]: Attack Slope; Env [Edit]: Decay Time; Env [Edit]: Decay Slope - Alesis Ion Reference Manual

Alesis ion synths: reference manual
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Env [edit]: Attack Slope

Page:
1
Soft Button:
2
Range:
linear, +exp, -exp
Default:
linear
In the attack stage, the envelope's level always rises from zero to 100%.
This parameter lets you specify how it gets there. A linear slope goes
straight from point A to point B, and is your general plain-vanilla
envelope slope. A +exp slope is bowed upward—it rises quickly at first
and then trails off. This mimics the charging characteristics of electronic
capacitors, which were used to generate envelopes in vintage analog
synths. This slope is good for making your attacks extra-snappy. A -exp
slope is bowed downard—it starts off slowly and bursts up at the end.
If you are designing a sound to build toward a crescendo, this might be
slope you need. You don't need to learn the names of these slopes,
though, since you can always see your envelope pictured on the display as
you edit it. Just scroll through the slopes until you see the one that looks
right.

Env [edit]: Decay Time

Page:
1
Soft Button:
3
Range:
0.5 ms – 30 sec
Default:
0.5 ms
This parameter determines the length of the decay stage of the envelope.
This is the amount of time it takes for the envelope's level to drop from
100% at the height of the attack down to the sustain level. This
parameter can also be adjusted by pressing the appropriate envelope
button and turning the decay knob.

Env [edit]: Decay Slope

Page:
2
Soft Button:
1
Range:
linear, +exp, -exp
Default:
linear
This parameter lets you specify the slope for the decay stage of the
envelope. The slopes are similar to those for the attack: a linear slope is
a straight line, a +exp slope starts out fast and trails off, like a capacitor,
and a –exp slope starts out slow and builds up speed as it goes.
Program Parameters
5
67

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