MIDI Control JesterML Operating Manual
73-406-00 Issue 3.0 61 of 85
MIDI Control
MIDI and the JesterML
The JesterML is designed only to receive MIDI information. It cannot transmit MIDI
information to another device, although a ‘THRU’ port is provided to allow daisy
chaining. The JesterML uses two types of MIDI information – MIDI Notes, and MIDI
Show Control (MSC).
You can disable all MIDI control completely by setting MIDI to <Disabled> in Setup.
This is the default value, so if MIDI does not function, check that it is Enabled first.
Note that due to internal resource limitations, a USB Keyboard cannot be used when
MIDI is enabled.
MIDI Notes – Getting Started
Before using MIDI, you must first activate it in Setup. To do this, press and hold
SHIFT and MODE, then navigate to the <MIDI Setup> option and press ENTER, then
toggle the <Disabled> to read <Enabled>.
Once MIDI is activated, plug in a MIDI cable from a MIDI instrument to the MIDI ‘IN’
socket and set the JesterML to Preset mode. Any note played on the MIDI instrument
will turn a channel on.
If this doesn’t work, go into Setup and perform a desk reset (to clear all settings to
default), then re-activate MIDI.
MIDI Notes – Transmit and Receive Channels
MIDI instruments send a stream of Note On and Note Off messages from their ‘OUT’
port using Transmit channels numbered 1 to 16. By setting the Receive channel on
the JesterML, only the Note messages that are wanted will be received. Alternatively,
the Receive channel may be set to all channels <--> so that any MIDI Note
information transmitted will be received.
MIDI Notes – Note Numbers
MIDI assigns ‘Note Numbers’ to musical notes. Middle C is note 60. By default,
octaves are mapped to the 12 presets/submasters (there are 12 notes in a MIDI
octave since it includes both the black and white notes on a piano keyboard).
However, this setting can be changed so that a specific MIDI Note is mapped to the
first preset /submaster.
When MIDI is set to map octaves, the maximum number of presets / submasters that
can be controlled is 12. When a MIDI note number is set, the maximum number of
presets that can be controlled (Preset Mode) is 48, and the maximum number of
submasters that can be controlled (Run Mode) is 24.
When controlling submasters in Run Mode, the action of MIDI is the same as raising
the submaster fader on the desk, therefore you can only output submasters from the
current page. Using MIDI does not increase the number of submasters; to control
submasters from another page, the page must be changed on the desk in the usual
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