Appendix; Midi Background; Midi Channels & Continuous Controllers - E-Mu X board25 Owner's Manual

X board25; x board49

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Appendix

APPENDIX

MIDI Channels & Continuous Controllers

MIDI continuous controllers may seem confusing at ﬁrst, but they are really very

simple once you understand them. You probably already know that there are 16

MIDI channels per MIDI cable. Information on a MIDI channel will only be

received by an instrument set to receive that channel. MIDI channels are usually

associated with different sounds. In this way, up to 16 sounds per MIDI cable can

can be separately controlled.

Each MIDI channels uses three basic types of messages; note on/off, preset changes,

and continuous controller messages. When you play the keyboard, the X Board

transmits information about which notes were played and how hard.

The X Board can also send continuous controller information from its 16 knobs, pitch

and mod. wheels as well as aftertouch from the keyboard (key pressure applied after

the notes have been pressed). These controls are used to add more expression or

control.

The controller knobs send out information on separate continuous controller

numbers. There is a set of 128 continuous controller numbers (0-127) for each

MIDI channel. Some continuous controllers, such as modulation wheel, volume,

and pan have standardized numbers. For example, volume is usually sent on

continuous controller #7.

Normally, the X Board controller knobs and wheels transmit on a single MIDI

channel, but each of the 16 knobs and wheels can be programmed to transmit on a

different MIDI channel if you so desire. See page 35 for more information.

MIDI

Channel 1

Channel 2

Channel 3

Channel 16

Note

On/Off

Program

Change

Continuous

Controllers

X Board

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