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Chapter 11 Connecting with External Device
Connecting MIDI Devices
By connecting an external MIDI device and exchanging
performance data, you can control the performances on one
device from the other. For instance, you can output sound
from the other instrument or switch Tones on the other
instrument.
What’s MIDI?
MIDI, short for “Musical Instrument Digital Interface,” was
developed as a standard for the exchange of performance
data between electronic instruments and computers.
The AT-45 is equipped with MIDI connectors to let it
exchange performance data with external devices. These
connectors can be used to connect the AT-45 to an external
device for even greater versatility.
About MIDI Connectors
The AT-45 has two kinds of MIDI connectors.
Connecting these to the MIDI connectors on a MIDI
instrument makes it possible for the two instruments to
control each other.
For instance, you can output sound from the other
instrument or switch tones on the other instrument.
You should also set the MIDI send channel as needed.
fig.
MIDI Out Connector
The notes played on the keyboard, movements of the
Damper pedal, Expression data, data indicating that a
Registration button, etc., was pressed will be transmitted to
the external MIDI connector. The Solo voice will be
transmitted only if the Solo [To Lower] button is ON.
MIDI In Connector
Performance messages from an external MIDI device are
received here.
These incoming messages may instruct the receiving MIDI
instrument to play sounds or switch tones.
The AT-45 contains two sound generators: one sound
generator for its own keyboards and one GS sound generator
(p. 213). Normally, musical data transmitted from an external
device to the MIDI In connector is sent to the GS sound
generator, but you can also set the “MIDI IN Mode”
parameter (p. 179) so that the keyboard sound generator is
controlled.
Making the Connections
NOTE
When connecting, turn on power to your various devices in
the order specified. Failure to follow these steps in the order
given could cause a malfunction and/or damage to speakers
or other equipment.
1.
Turn the volume all the way down on the AT-45
and on the device you’re about to connect.
2.
Switch off the power to the AT-45 and the device
you’re about to connect.
3.
Use a MIDI cable (sold separately) to connect the
MIDI connectors to each other.
4.
Switch on the power to the AT-45 and the
connected device.
5.
Adjust the volume level on the AT-45 and the
connected device.
6.
You should also set the MIDI send channel as
needed (p. 180).
A separate publication titled “MIDI Implementation” is also
available. It provides complete details concerning the way
MIDI has been implemented on this unit. If you should
require this publication (such as when you intend to carry
out byte-level programming), please contact the nearest
Roland Service Center or authorized Roland distributor.
AT-45_e.book 186 ページ 2005年2月21日 月曜日 午後5時43分
Summary of Contents for Music Atelier AT-45
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