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Chapter 10 Convolution Reverb: Space Designer 131
The curve shape can also be changed by clicking and dragging on the envelope curve
directly.
Filter Envelope
The entire Filter Envelope graphic, including nodes plus the Filter Envelope parameters
below. The central large node indicates/controls the Attack endpoint (and Decay
startpoint) and Break Level parameters simultaneously. The large node on the right-
hand edge controls the Decay endpoint and End Level parameters simultaneously. Also
note the smaller nodes in the attack and decay portions of the envelope. These are the
Curve Form node parameters that are used to create curves.
The Filter On switch must be active, or the Filter Envelope controls discussed below will
have no effect. The Filter Envelope only is available if the Filter is switched on.
Init Level
This parameter sets the initial cutoff frequency of the Filter Envelope in Hertz.
Obviously, you should use your ears and level meters to ensure that the filter (and
signal) levels, and desired tonal quality, are appropriate.
Adjusting this up or down can be done graphically in the Envelope window (the large
node on the left), or by click-holding and dragging the mouse cursor up/down on the
numerical entry.