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9.1 WHAT IS MIDI?
As the name already says MIDI (Musical Instrument Digital Interface) is a standardized data interface for musical
instruments and devices.
In the normal MIDI standard, MIDI controllers, MIDI switches, MIDI Note Numbers etc. are determined. As in
computer technology, all Midi Events are given a certain address (byte sequence) which is recognized by all
functional MIDI interfaces alike. MIDI means a language with which devices made by different manufacturers can
communicate on a common level.
Normally speaking MIDI is used to play additional devices such as expanders, samplers, synthesizers etc. from a
keyboard. Information such as the notes played, the position of the modulation wheel, the position of a foot
controller, velocity of key activation etc. are transmitted by MIDI to the units connected.
Effect units like the Fx 70 can also be subjected to MIDI control. Users can program it in such a way that the
appropriate effect is always selected when a synthesizer sound is called up. That is possible because the
synthesizer always transmits a command to change the program at sound selection. The Fx 70 receives this
program change command and then calls up the program allocated to the command in question.
The MIDI specification includes 16 different channels. A MIDI transmitter can control up to 16 different MIDI
receiving units completely independently of each other, all at the same time. You can set the MIDI reception channel
on the Fx 70 (see chapter 7.1). For correct MIDI transmission you must make sure that the appropriate MIDI channel
has also been set on the transmitting unit (keyboard, sequencer, computer). Please read the user manuals of the
units in question.
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