Dest List And Dest List Number; Patching A Tempo - Lexicon PCM 80 - MIDI IMPLEMENTATION DETAILS Midi Implementation Manual

PCM 80 MIDI Implementation Details
Dest List ID and Dest List Number
The Patch Information Block has the following format:
You will notice that the Plate Algorithm Patchable Parameter Information list contains columns Dest List
ID and Dest Number for all the non-Tempo fields. The values in these columns are the exact values used
in the Patching Information to select the Destination Patchable Parameter for the patch.
Looking over the Patchable Parameter Information for all the algorithms (see Appendix.) you begin to
notice the pattern that all the algorithm edit matrix parameters before the Modulation parameters are of
Dest List ID 0, and that all the Modulation parameters are of Dest List ID 1. Why did we make this seemingly
annoying distinction instead of just having one long list of patchable parameters, sequenced 0-73? The
Modulation row is identical in every PCM 80 algorithm. It would have taken up a lot of space to duplicate
all the control information for all those parameters ten times, so we combined "algorithm specific" and
"general" patchable parameters in order to eliminate needless duplication in the software.

Patching a Tempo

Patching a parameter that can be in Tempo form has some subtle details which are best pointed out by
comparing four examples:
Patching a short delay time parameter to milliseconds.
Patching the same parameter to tempo.
Patching a long delay time parameter to milliseconds.
Patching the same parameter to tempo.
The reason for this lengthy example session will become very clear if you follow it through.
Patching a short delay time parameter to milliseconds
Here again, a few lines from the Plate Algorithm Patchable Parameter Information list.
Seq Bits
14 1
15 10
The range 0-465 in Rvb Time Pre Delay for the Plate Algorithm represents the value 0-930 milliseconds.
Each increment is 2 milliseconds.
Recall the format of the beginning of a Patch Information Block.
24
Bits Contents
7 Patch Source Value
1 Destination Patchable Parameter List ID Value
8 Destination Patchable Parameter Number Value
4 Count of Patch Points Value
Dest Dest
List ID Number
0 14
Bits Contents
7 Patch Source Value
1 Destination Patchable Parameter List ID Value
8 Destination Patchable Parameter Number Value
4 Count of Patch Points Value
Range Parameter
1 <Tempo Flag>
465 Rvb Time
Lexicon
Pre Delay