Technics sx-PR604/M, sx-PR804/M What is MIDI?, Midi terminals, Connection examples, Midi channels

MIDI

Part XII MIDI

What is MIDI?

MIDI (Musical Instrument Digital Interface) is the international standard for digital communication of electronic musical instrument data. This means that any equipment which has a MIDI terminal—such as electronic musical instruments and personal comput- ers—can easily exchange digital data with other MIDI equipment without resorting to complicated conversions or connections.

MIDI terminals

(On the rear panel)			IN:
			The terminal by which this instrument receives data
			from other equipment.
			OUT:
			The terminal that transmits data from this instrument to
			other equipment.
THRU	OUT	IN	THRU:
			The terminal that transfers data from the IN terminal
			directly.
	MIDI
			• For these connections, use a commercially available MIDI
			cable.

Connection examples

To generate sound from a connected instrument by playing this instrument

	OUT	MIDI cable		IN
This instrument			Another MIDI instrument

To generate sound from this instrument by operating a connected instrument

	IN	MIDI cable		OUT
This instrument			Another MIDI instrument

To connect with a MIDI sequencer

OUT IN MIDI cable OUT IN

This instrument MIDI sequencer

MIDI channels

Many different kinds of performance data are sent using just one MIDI cable. This is possible because MIDI signals are sent and received through 16 different “basic channels” (num- bered 1 to 16). In order for the exchange of data to take place, the channels on the transmission side must match the channels on the receiving side. This characteristic also makes it possible to link multiple sound generators and to control each by matching specific channels.

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