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MORE INFORMA TION
ABOUT MIDI
MIDI (Musical Instrument Digital Interface) is designed to allow computer controlled
musical instruments such as the OX to communicate with each other.
Messages
There are several different types of data
messges that are
transmitted via MIDI:
VOICE / These are messages about notes. MIDI transmits a NOTE ON and a NOTE
NUMBER when a note is played on a keyboard or drum machine. On some devices
velocity is transmitted as well. When the note is release
, a NOTE OFF is transmitted.
Levers, Wheels
, Program Changes
, Footswitches
, and Pressure are also transmitted
as Voice Messges
, however these are not utilized by the ox.
COMMON / Among the Common Messages is Song Select
, used to change from one
Song to another.
REALTIME / These are commands that control sequencer timing and start/stop infor-
mation
, that tell a slaved sequencer or drum machine when to start and at what tempo
to play.
EXCLUSIVE / Exclusive messages are used for data storage and anything else spe-
cific to a particular machine. Each manufacturer has its own System Exclusive
10.
Channels
MIDI transmits on 16 independent channels at once
, which means that information for
many different machines can be transmitted on the same MIDI cable. The OX can
transmit on any channel
, and receive on any channel. EDIT PARAMETER 07 sets the
receive channel
, EDIT PARAMETER 08 sets the Transmit Channel.
Omn;
Mode
The DX can be set to receive on all 16 channels at once by turning OMNI MODE on.
EDIT PARAMETER 09 turns on Omni Mode.
Timing
MIDI sends start and stop commands for running sequencers and drum machines.
Timing pulses are also transmitted at a rate of 24 pulses per quarter note. The exact
rate depends upon the master Tempo setting. Set EDIT PARAMETER
01 to "d" to
slave the DX to MIDI. Turn on EDIT PARAMETER 10 to transmit MIDI timing. To
receive MIDI timing set EDIT PARAMETER 01 to "
Song Select
The SONG SELECT command enables remote selection of Songs (not Sequences)
via MIDI. The DX responds to Songs
009.
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