Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 6 Manual page 29

graphic shrinks in scale as the segment times get longer. This auto-zoom feature maximizes the
available display space. Try lengthening one of the segment times. The envelope graphic will
stretch to fill the display from left to right. When it fills the display, it will shrink to half its size,
and the top line will indicate that the scale has changed (from [1/1] to [1/2], for example).
Each parameter on this page has two values, as listed below. For the envelope segments, the
first (upper) value is the duration of the segment, and the second is the amplitude level at the
completion of the segment. For the Loop parameter, the values define how the envelope loops,
and how many times the loop cycles.
PARAMETER
ATTACK SEGMENT 1, 2, 3
DECAY SEGMENT
RELEASE SEGMENT 1, 2, 3
LOOP
Attack Segment Times
These indicate how long it takes for the current layer's amplitude to reach its final level from its
starting level.
Attack Segment Levels
These are the final levels that each segment achieves at completion. The levels are expressed as
percentages of the maximum possible amplitude for the current layer. Attack segment 1 always
starts at zero amplitude, and moves to its assigned level in the time specified by its time value.
So the default settings of 0 seconds and 100% mean that the first segment of the attack section
moves instantly from zero amplitude to 100% amplitude. Increase the time of Attack segment 1
if you want the sound to ramp up more slowly.
Attack segments 2 and 3 affect the sound only when you set a non-zero value for time. They
will then move to their assigned levels in the time specified. Their starting levels are equal to
the final levels of the preceding segment.
Decay Segment
The decay section has only one segment. It has values for time and level, just as for the attack
section. The decay section begins as soon as the attack section has been completed. It starts at
the same amplitude level as the attack segment preceding it, and moves to its assigned level in
the time specified. You'll hear a note's decay section only when the attack section is completed
before a Note Off message is generated for that note.
To create a sustaining envelope, simply set the Decay segment to a non-zero value.
Release Segments
Like the attack and decay sections, each of the three segments in the release section has values
for time and level. Each segment reaches its assigned level in the time specified for that
segment. Release segment 1 starts at the Note Off event for each note, at the current amplitude
level of that note—whether it's in the attack section or the decay section. It then moves to its
assigned level in the time specified. Release segments 2 and 3 start at the final levels of the
segments before them. Release segments 1 and 2 can be set to any level from 0 to 100%. Release
segment 3 always has a level of 0%, so you can't adjust its level. In place of its Level parameter
Program Mode and the Program Editor
Program Editor—Amplitude Envelope (AMPENV) Page
TIME
LEVEL
TIME
LEVEL
TIME
LEVEL
TYPE
# OF LOOPS
RANGE OF VALUES
0 to 60 seconds
0 to 100 %
0 to 60 seconds
0 to 100 %
0 to 60 seconds
0 to 100 %
Off, Forward, Bidirectional
Infinite, 1 to 31 times
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