Roland V-Synth Manuale Utente

Pagina di 180
152
About MIDI
MIDI (Musical Instruments Digital Interface)
 is a standard 
specification that allows musical data to be exchanged between 
electronic musical instruments and computers. MIDI With a MIDI 
cable connecting MIDI devices that are equipped with MIDI 
connectors, you can play multiple instruments with a single 
keyboard, have multiple MIDI instruments perform in ensemble, 
program the settings to change automatically to match the 
performance as the song progresses, and more.
If you mainly use the V-Synth as a standalone keyboard instrument, 
you may really not need to know much at all about MIDI. 
However, the following MIDI-related information is provided so 
you can play the V-Synth using an external MIDI device, or master 
other advanced techniques.
About MIDI Connectors
The V-Synth is equipped with the three types of MIDI connectors, 
each which works differently.
fig.midi-con
MIDI IN Connector
This connector receives MIDI messages that are transmitted from 
external MIDI devices. The V-Synth can receive these messages to 
play notes or select sounds, etc.
MIDI OUT Connector
This connector transmits MIDI messages to external MIDI devices. 
The V-Synth’s MIDI OUT connector is used for sending the 
performance data of the keyboard controller section as well as data 
used for saving various settings and patterns.
MIDI THRU Connector
MIDI messages received at MIDI IN are re-transmitted without 
change from this connector to an external MIDI device. Use this in 
situations such as when you use multiple MIDI devices 
simultaneously.
MIDI Channels and Multi-timbral 
Sound Generators
MIDI transmits many types of data over a single MIDI cable. This is 
made possible by the concept of 
MIDI channels
. MIDI channels 
allow messages intended for a given instrument to be distinguished 
from messages intended for another instrument. In some ways, 
MIDI channels are similar to television channels. By changing the 
channel on a television set, you can view the programs that are being 
broadcast by different stations. In the same way, MIDI also allows a 
device to select the information intended for that device out of the 
variety of information that is being transmitted to it.
fig.midi-01.e
MIDI uses sixteen channels; 1 through 16. Set the receiving device so 
that it will receive only the channel that it needs to receive.
Example:
Set the V-Synth to send Channel 1 and Channel 2, then set sound 
module A to receive only Channel 1 and sound module B only 
Channel 2. With this setup, you can get an ensemble performance, 
with, for example, a guitar sound from sound module A and bass 
from sound module B.
fig.midi-02.e
When used as a sound module, the V-Synth can receive on up to 
sixteen MIDI channels. Sound modules like the V-Synth which can 
receive multiple MIDI channels simultaneously to play different 
sounds on each channel are called 
multi-timbral sound modules
.
The cable from the antenna carries the TV
signals from many broadcast stations.
The TV is set to the channel of the station
you wish to watch.
Station B
Station A
Station C
MIDI OUT
MIDI IN
MIDI THRU
MIDI IN
Receive channel: 1
Receive channel: 2
Sound
Module 
A
Sound
Module 
B
Transmit channel: 1, 2
MIDI keyboard