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Chapter 10 Convolution Reverb: Space Designer 133
End Level
This parameter is used to set the filter end cutoff frequency. It is expressed as a
percentage of the overall Filter envelope scale. If set to a value of 0, the filter stays
“open” for the remainder of the reverb signal (provided that the filter is configured as
“Low Pass” 6 dB or 12 dB).
The Filter Attack and Decay Curve Form Nodes
On the Attack curve displayed in the Envelope window, you will see two nodes in the
attack portion of the overall Filter envelope curve. The Break Level (a larger node)
separates the attack and decay portions of the envelope. There are also two nodes in
the decay portion of the envelope—to the right of the Break Level node. These are the
Filter Attack/Decay Curve Form node parameters.
Their use is identical to that of the Volume Envelope Curve Form nodes, but obviously
they are used to control the Filter Envelope. Please see the “The Volume Attack and
Decay Curve Form Nodes” section, on page 130, for further information.
Density Envelope
When synthesizing artificial Impulse Responses, Space Designer offers a facility that
approximates the sound of early reflection clusters as part of the overall reverb sound.
This is achieved through use of a ramp envelope to dynamically change the density of
the early reflection simulation.
The Density parameters can be used in conjunction with the Filter to fine-tune the
timbre of your reverbs.