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Chapter 13 Space Designer convolution reverb 2 51
Space Designer lter envelope
The lter envelope appears in the main display when you click the Filter Env button. You can use
it to control the lter cuto frequency over time. You can adjust all lter envelope parameters
either numerically in the parameter bar or graphically in the main display using the techniques
discussed in Edit Space Designer envelope parameters on page 245.
Note: Activation of the lter envelope automatically enables the main lter.
Controls the Decay endpoint
and End Level parameters
simultaneously.
Controls the Attack Time endpoint
(and Decay Time startpoint)
and Break Level parameters
simultaneously.
Filter envelope parameters
•
Init Level eld: Sets the initial cuto frequency of the lter envelope.
•
Attack Time eld: Determines the time required to reach the Break Level.
•
Break Level eld: Sets the maximum lter cuto frequency that the envelope reaches. This
setting also acts as the separation point between the attack and decay phases of the overall
lter envelope. In other words, when the selected level has been reached after the attack
phase, the decay phase begins. You can create interesting lter sweeps by setting the Break
Level to a value lower than the Init Level.
•
Decay Time eld: Determines the time required after the Break Level point to reach the End
Level value.
•
End Level eld: Sets the cuto frequency at the end of the lter envelope decay phase.