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130 Chapter 10 Convolution Reverb: Space Designer
Volume Decay Mode
You have two options—Exp (Exponential) and Lin (Linear).
The output of the envelope generator is shaped by an exponential function during the
decay phase. If the decay phase is set as a straight line, the result is an exponential
function that describes a natural decay.
If set Lin, no shaping is performed.
An Exp curve will result in a much more natural sounding reverb tail.
Click on the desired button to activate the required mode.
End Level
This parameter is used to set the end volume level. It is expressed as a percentage of
the overall Volume Envelope—the default End Level value is 0.000%. At this value, the
reverb tail cuts off abruptly, which is great for gated reverb effects.
Adjusting this up or down can be done graphically in the Envelope window (the large
node at the bottom right), or by click-holding and dragging the mouse cursor up/down
on the numerical entry.
The Volume Attack and Decay Curve Form Nodes
On the curve displayed in the Envelope window, you will find two small nodes in the
attack portion of the overall Volume Envelope curve. A vertical line separates the attack
and decay portions of the envelope. There are also two small nodes in the decay
portion of the envelope—to the right of the vertical line. These are the Volume Attack/
Decay Curve Form node parameters.
The Curve Form nodes are tied to the envelope curve itself, so you can view them as
envelope handles if you wish. Moving the nodes vertically/horizontally will change the
shape of the envelope curve. To change the Curve Form node positions, simply click-
hold and drag them.