2.2.3 Expanding the SysEx String
Just like direct MIDI control, you can repeat 3-byte commands within the parametric SysEx string to send multiple commands to a single 1788A as shown by figure 2-7.
Fig. 2-7. Expanding the SysEx String
SysEx Start | Aphex MIDI I.D. | | | 1788A-R MIDI Channel | Placeholder1 | 1788A NET Number |
| | | | | xx | xx | xx |
F0 | 00 00 38 | |
Put Up To 64 3-byte Commands Here
Command | Mic Channel | Value | Command | Mic Channel | Value | | Command | Mic Channel | Value | | SysEx End |
| | | | | | | | | | | |
xx | xx | xx | xx | xx | xx | | xx | xx | xx | | F7 |
NOTE: You cannot expand the 2-byte MIDI Preset string.
2.2.4 1788A-R’s Odd MIDI I.D.
All 1788A-R units are I.D.’d a little differently than normal MIDI devices or the 1788A’s direct MIDI port. There is no recognition of the MIDI Device byte, although it must be present as a placeholder in the SysEx string. Any value may be used. The MIDI Channel is responded to normally.
Refer to Section 3 to learn how to set up the MIDI Channel on the 1788A-R.
2.2.5 Daisy-Chained 1788A-R’s
When you daisy-chain units by using the MIDI THRU ports, every unit will recognize the SysEx strings addressed to its MIDI channel. Each unit will analyze the NET Number contained in parametric strings and redirect any commands falling within its own bank, ignoring all others. If a 2-byte MIDI Preset command is received, the targeted 1788A-R will propagate its prescribed preset to its own Bank of 1788A’s.
2.2.6 Preset Recall Strategy
Each 1788A-R is given a different MIDI channel number. MIDI controllers can then command a preset from any one or combination of 1788A-R’s. Combinations can have different preset numbers assigned to create complex constellation presets. The MIDI controller will transmit a series of 2-byte MIDI Preset commands, one to address each 1788A-R.
Refer to Section 3 learn about the 1788A-R’s stored presets and how they are
