10.6

Table Of Contents
102Logic Pro Instruments
Decay knob: Set the time required for the peak amplitude to fall to the sustain level.
Adjustable from 0.00 seconds to 20.00 seconds.
Sustain knob: Set the envelope sustain level as a percentage of peak amplitude.
Adjustable from 0% to 100%.
Release knob: Set the time required for the signal amplitude to fall from the sustain
level to zero, after the key has been released. Adjustable from 0.00 seconds to 20.00
seconds.
Tip: Where possible, try to use the minimum required envelope release times in order
to reduce voice overlap, because this helps to reduce CPU load.
Logic Pro Alchemy multiple segment envelopes
Modulation components are shown only in advanced view. Click the Advanced button to
switch to advanced view.
The Multiple Segment Envelope Generator (MSEG) allows complex modulation envelopes to
be created and edited.
The MSEG display shows a graph of envelope generator output. The ruler along the top
shows the time in seconds or in beats when Sync is activated. The envelope appears as
series of points joined by lines or curves representing the different envelope segments. A
Play icon scrolls across the display, tracking the progress of the envelope relative to the
most recently played note.
Any number of points can be added to an envelope. The envelope segments linking these
points can be linear or curved. A Sync function allows envelopes to be linked to a grid
derived from the Logic Pro tempo to create elaborate rhythmic patterns.
Envelopes are created and edited in two basic ways: by adding, moving, or removing
points, and by adjusting the curve of the envelope segments between points. See the Edit
Mode pop-up menu information.
Two pale gray vertical lines also appear in the MSEG display, each with a small triangular
handle shown in the ruler. These are the envelope loop markers. The marker with the left-
facing handle sets the loop end point. The marker with the right-facing handle sets the
loop start point.
The loop markers are moved by dragging the handles horizontally. The loop start marker
cannot be moved to the right of the loop end marker, and the loop end marker cannot be
moved to the left of the loop start marker. Loop markers always snap to the nearest point.
Also see the Loop Mode pop-up menu information.