Edirol V-44SW E1 - Manual (Page 45)

Using the V-44SW with Other Devices
45
The V-44SW can be controlled from an external device using MIDI. You can, for example, control the V-44SW from a Roland
MIDI-compatible product (e.g., a Fantom-X Series keyboard) to conduct video performances synchronized with sounds.
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About MIDI
MIDI, an abbreviation for Musical Instrument Digital Interface,
is an international standard created to enable exchange of
performance data among devices. Any MIDI-compatible
device can be connected simply with a MIDI cable, allowing
transfer of performance data and control of device operations
and settings
MIDI messages (data handled with MIDI). On the V-440HD,
the MIDI OUT and MIDI THRU are combined in one
connector. The function is switched according to the operation
being performed.
MIDI IN: MIDI messages from other MIDI devices are
received here.
MIDI OUT: MIDI messages from the V-440HD are
transmitted from here.
MIDI THRU: MIDI messages received at the MIDI IN
connector are output as is.
MIDI is able to send information over a single MIDI cable
independently to two or more MIDI devices. This is made
possible by the concept of MIDI channels. You can think of
MIDI channels as being somewhat similar in function to the
channels on a television. By changing the channel of a TV set,
you can view a variety of programs being transmitted by
different broadcast stations. This is because data is received
only from the transmitter whose channel is selected on the
receiver.
In the same way, a MIDI device whose receive channel is set
to “1” will receive only the data being transmitted by another
MIDI device whose transmit channel is also set to “1.”
The following MIDI messages are handled with the V-44SW.
● Bank Select and Program Change
These messages are used for switching tones.
On the V-44SW, these messages are used for selecting
input channels.
● Control Change Messages
These generally transmit information, such as vibrato, hold,
and volume, that enhances the realism of performances. All
functions are organized according to a controller number
from 0 to 127, with each function being assigned its own
number.
On the V-44SW, these messages are used with the video
faders and knobs.
● System Exclusive Messages
These messages are used for transmitting device-specific
settings.
On the V-44SW, these messages are used for transmitting
P in P settings and when setting the Multi Screen outputs.
When System Exclusive messages are exchanged, MIDI
transmissions are distinguished by Device IDs rather than
MIDI channels. When exchanging System Exclusive
messages, set the devices to the same Device ID.
The use of MIDI makes it possible to communicate with a
broad range of electronic musical instruments. However, this
does not mean that all MIDI messages can be exchanged
among all devices. Only those MIDI messages that both of the
communicating devices are designed to understand can be
exchanged. The owner’s manual that comes with a MIDI
device includes a MIDI Implementation Chart (p. 59).
Such charts allow you to easily find out which MIDI messages
that device can transmit and receive. When using MIDI
devices, compare the charts for the devices that will be
communicating to check which MIDI messages are
compatible.
Using MIDI
What is MIDI?
M IDI Connectors
MIDI channels
MIDI Messages Handled by the V-44SW
MIDI Implementation Chart
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