Midi Informations; What Is Midi - Key B Organ Viscount Legend Expander Mode D'emploi

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WHAT IS MIDI

The MIDI (Musical Instrument Digital Interface) allows instruments of different makes and types to

communicate with each other by means of this clearly specified protocol of codes.

This makes it possible to create systems of MIDI instruments which offer much better versatility and control

than can be achieved with separate instruments.

To make this communication possible, all MIDI instruments are equipped with two or three 5 pin DIN

connectors marked:

- MIDI IN:

By means of this connector, the device receives the MIDI data emitted by other units.

- MIDI OUT:

By means of this connector, the device sends the MIDI data it has generated to other units.

- MIDI THRU:

This connector, used to connect several units in series, emits the MIDI data exactly as they

are received by the respective MIDI IN port.

For example, most instruments equipped with MIDI interface transmit MIDI messages which specify which note

has been played and with what velocity by means of the MIDI OUT connector. If this connector is connected to

the MIDI IN of another MIDI instrument, such as a synthesiser or an expander, the connected instrument will

give a precise response to the notes played on the transmitter instrument. This allows you actually to play two

instruments at the same time, and obtain special multi-instrument sounds.

The same type of transfer of information is used to record MIDI sequences. A sequencer can be used to

record the MIDI data transmitted by the

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MIDI Channels

The MIDI is able to transmit a multitude of digital data by means of a single cable and thus a single connector,

thanks to the MIDI channels. There are 16 MIDI channels, so MIDI messages are processed when the

channels of the receiver and transmitter instruments are the same. The

transmit information on a maximun of 3 MIDI channels simultaneously: one for the Upper section, one for the

Lower section and one for the Pedals section. The data relating to the instrument's general information (the

Reverb level, for example) are transmitted and received only on the channel associated to the Upper section.

With factory settings conditions, MIDI messages are transmitted (by the [OUT/THRU] port) and received (by

the [IN1] and [IN2/PEDALS] ports) on the following MIDI channels: