Roland RD-300GX 用户手册

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53
 
Using the RD-300GX As a Master Keyboard
 
By connecting an external MIDI device to the MIDI OUT connector on the RD-300GX’s 
rear panel, you can then control the external MIDI device with the RD-300GX.
Normally, the RD-300GX will transmit note messages from the MIDI OUT connector, but 
if you press the [EXTERNAL/INTERNAL] button so the “EXTERNAL” indicator is lit, you’ll 
be able to control various settings on your external MIDI device in addition to transmitting 
note messages.
You can control internal and external sound generators independently.
If you press the [EXTERNAL/INTERNAL] button so the “EXTERNAL” indicator is lit, the RD-
300GX will be in a state where it can control an external MIDI sound module (External 
Zone). You use the [EXTERNAL/INTERNAL] button to switch between control of the 
Internal Zone and control of the External Zone. You can also make detailed settings for 
MIDI messages transmitted to external sound modules.
MIDI (Musical Instrument Digital Interface) is a standard specification that allows musical 
data to be exchanged between electronic musical instruments and computers. By using 
a MIDI cable to connect devices that have MIDI connectors, you can create an ensemble 
in which a single MIDI keyboard can play multiple instruments, or change settings 
automatically as the song progresses.
The RD-300GX has the following three types of MIDI connector. Their functions differ as 
described below.
 
fig.Q3-01
 
MIDI IN Connector
 
Performance messages from an external MIDI device are received here. These incoming 
messages may instruct the RD-300GX to play sounds or switch Tones.
 
MIDI OUT Connector
 
MIDI messages are transmitted from this connector to an external MIDI device. The RD-
300GX’s MIDI OUT connector is used for sending the performance data of the controller 
section as well as data used for saving various settings (Bulk Dump
 
 
 
USB MIDI Connector
 
Use a commercially available USB cable to connect this to your computer’s USB connector.
You can use MIDI-compatible software on your computer to transmit SMF files for 
playback by the RD-300GX, or set up a sophisticated music production system in which 
MIDI data is transferred between your sequencer software and the RD-300GX.
 
What’s MIDI?
 
About MIDI Connectors
RD-300GX_e.book 53 ページ 2008年2月14日 木曜日 午後1時26分