10.6

291Logic Pro Effects
Change Space Designer envelope curve shapes
Make sure that Show Bezier Handles is active in the Action menu at the top right of the
global parameters.
1. In Logic Pro, drag the envelope curve (the line itself) in the main display.
2. Drag the small nodes (hollow circles) attached to a line for fine adjustments to envelope
curves. These nodes are tied to the envelope curve itself, so you can view them as
handles that you use to change the Bezier curve.
Logic Pro Space Designer volume envelope
The volume envelope is used to set the reverb initial level and to control volume changes
over time. You can edit all volume envelope parameters numerically, and you can also edit
many of them graphically. See
Edit Space Designer envelopes in Logic Pro.
Volume envelope parameters
• Init Level field: Set the initial volume level of the impulse response attack phase. It is
expressed as a percentage of the full-scale volume of the impulse response file. The
attack phase is generally the loudest point of the impulse response. Set Init Level to
100% to ensure maximum volume for early reflections.
• Attack field: Determine the time before the decay phase of the volume envelope begins.
• Decay field: Set the length of the decay phase.
Note: The overall decay is determined by the global Length and Size parameter values.
To explain, a Length value of 100% and a Size value of 100% result in a decay that is the
full length of the loaded impulse response.
• Exp button: The decay curve of the volume envelope is shaped by an exponential
algorithm, in order to generate the most natural-sounding reverb tail.