Kurzweil K2600 V2.0 - MUSICIANS GUIDE SUPPLEMENT REV A Musician’s Manual Supplement page 15

When Layer 1 or 2 of a triple uses a keymap containing ROM samples (or edited ROM samples),
and you want the samples to sound relatively normal, you'll generally need to do two things:
• Include an AMP block in the layer
• Use the layer's default (natural) amplitude envelope
The AMP block ensures that the layer's amplitude envelope gets applied to the layer. The
natural amplitude envelope ensures that the decompression information gets applied to the
layer (user-defined envelopes contain only Attack-Decay-Release information, and no
decompression information). Of course, you might like the way a layer sounds without the AMP
block, or with a user-defined amplitude envelope.
To check whether a layer's keymap uses its default (natural) amplitude envelope or a user-
defined amplitude envelope, go to the AMPENV page for that layer. If the only visible
parameter is Mode, with a value of Natural, the layer is using its natural amplitude envelope. If
you see a lot of parameters like Att1, Dec1, and Rel1, the layer is using a user-defined amplitude
envelope. To revert to the natural amplitude envelope, select the word User, and change it to
Natural by turning the Alpha Wheel one click in either direction.
Input Locations
We mentioned that Layer 2's amplitude envelope may or may not affect the sound of Layer 1—it
depends on the location of Layer 2's AMP block relative to the input(s) from Layer 1.
Figure 2-3 shows the algorithm for Layer 2 of a triple. The input point from Layer 1 is in the
third DSP block (F2, a crossfade mixer in this case), as indicated by the arrow entering the
F2 block from above the algorithm. Layer 2's AMP block (F1, which is highlighted) is before the
input point, which means that the amplitude envelope for Layer 2 gets applied before the signal
from Layer 1 joins the signal from Layer 2. Consequently the amplitude envelope of Layer 2
affects only Layer 2, and doesn't affect the sound of Layer 1.
EditProg:ALG|||||||||||||||<>LyrT2:2/3||
||||||||||||||||||||||||||||||||||||||||
Algorithm:65|||||[Triple,|layer|2|of|3]|
||||||||||||||||6|||||||||||||||||||||||
qwwwwwwtqWWERWWT7wwerwwtqwwerwwtqwwerwt|
dPITCH|gkAMP|||I;XFADE|gkNONE||gkALPASj|
cvvvvvVbcvvvvVvbnvvvVvvbcvvVvvvbcvVvvvm|
<more||F1|AMP|F2|XFD|F3|OFF|F4|FRQ|more>|
Figure 2-3 AMP block before input point
Figure 2-4 shows the same algorithm, with one change: the AMP block is now in F3
(highlighted), after the input point of Layer 2. This means that the amplitude envelope for
Triple Modular Processing
Editing Triples
2-7