RJM Rack Gizmo User Manual

14
MIDI Usage
The Rack Gizmo can receive MIDI messages from any MIDI footswitch or other MIDI controller. By storing different
settings, or “patches” for different MIDI program numbers, you can automatically recall a stored patch by sending the
correct MIDI program number from your footswitch. You can assign which audio loops are on for each and every patch.
To save a setting to a MIDI program number:
• Select a MIDI program number with your MIDI footswitch or controller.
• Manually select the desired state of each Audio Loop using the Rack Gizmo’s front panel buttons.
• Hold down the Write Button (4) until the LEDs flash.
You can save up to 256 patches, using MIDI program numbers 1 through 128 in MIDI banks 0 and 1.
MIDI Continuous Controllers
In addition to supporting MIDI Program Change messages, the Rack Gizmo also supports MIDI Continuous Controller
(CC) messages. Using a MIDI controller capable of sending CC messages, you can assign a button on the controller to
control an individual loop. For example, you can have a button on your controller assigned to turn an overdrive pedal
on or off without affecting any of the other loops.
By default, the following continuous controller numbers are used:
Audio Loop
CC number
Function Switch
CC number
Loop 1
80
Function 1
88
Loop 2
81
Function 2
89
Loop 3
82
Function 3
90
Loop 4
83
Function 4
91
Loop 5
84
Function 5
92
Loop 6
85
Function 6
93
Loop 7
86
Function 7
94
Loop 8
87
Function 8
95
The Continuous Controller ranges can be adjusted in Setup Mode.
It is also possible to control the Audio Loops in pairs. The CC numbers for dual operation are as follows:
Audio Loops
CC number
Loops 1 and 2
52
Loops 3 and 4
53
Loops 5 and 6
54
Loops 7 and 8
55
Each Continuous Controller message has a value assigned to it. Values in the range of 0…63 will turn a loop or switch
off, and values of 64…127 will turn it on.
Please note that Continuous Controller messages operate exactly the same as pressing buttons on the front panel. All
Setup Mode options such as invert, group and momentary modes will be in effect when processing CC messages, and
group mode will be active for single loop switching (but not loop pair switching).

RJM Rack Gizmo Specifications

General

Brand	RJM
Model	Rack Gizmo
Category	Switch
Language	English