Roland GP-100 Owner's Manual page 69

Section 5 Appendix
About MIDI
GLOBAL
Amp Being Used:A Tube
SP Being Used:A Stack
SP Color: A Straight
Amp Being Used:B — Solid State
SP Being Used:B Built In
SP Color:B Straight
Connecta main amp + stack-type speaker to output channel 1, and
a JC-120 to output channel 2. By sending distorted lead sounds
from output 1, and clean rhythm sounds from output 2, each Patch
can be played through the most suitable type of speaker, allowing
you to produce a wide variety of tone colors.
Application example
Speaker Box
GLOBAL
Amp Being Used:A Tube
SP Being Used:A Stack
SP Color: A Straight
Amp Being Used:B Tube
SP Being Used:B Stack
SP Color:B Straight
Send/Return
Effect Sequence immediately following the preamp
Mode Branch Out
Setthe Send/Return "Mode" to "Branch Out," and set the connec-
tion order to immediately following the PREAMP. The dry sound
from immediately after the PREAMP will be output from the SEND
Jack, and the effect processed sound will be output from OUTPUT
Jack 1. Since the SEND Jack will always output a sound without
effect processing, you can obtain an unadulterated, clean sound
even while you use alot of effects. By connecting a direct line from
OUTPUT Jack 2 to the PA console, and making effective use of the
line sound for some sounds, you can perform with nearly CD-
quality sound.
MIDI is an acronym for Musical Instrument Digital Interface, and
is a world-wide standard for allowing electronic musical equip-
ment to communicate by transmitting messages such as perfor-
mance information and sound selections. Any MIDI equipped
device is able to transmit applicable types of data to another MIDI
equipped device, even if the two devices are different models or
were made by different manufacturers.
In MIDI, performance information such as playing a key or
pressing a pedal are transmitted as MIDI Messages.
1. How MIDI messages are transmitted and
received
First, we will explain briefly how MIDI messages are transmitted
and received.
MIDI connectors
The following three types of connector are used to convey MIDI
messages. MIDI cables are connected to these connectors as
needed.
{ MID! ©
OUT/THRU IN
MIDI IN: This connector receives messages from another
MIDI device.
MIDI OUT: This connector transmits messages from this de-
vice.
MIDI THRU: Thisconnector re-transmits the messages that were
received at MIDI IN.
* The GP-100 has a "MIDI IN" and a "MIDI OUT/THRU" connector.
The "MIDI OUT/THRU" connector can function either as a "MIDI
OUT" or as a "MIDI THRU", depending on how the GP-100 is set.
MIDI channels
MID! is able to independently control more than one MIDI device
over a single MIDI cable. This is possible because of the concept
of MIDI channels.
The idea of MIDI channels is somewhat similar to the idea of
television channels. By changing channels on a television set, you
can view a variety of programs. This is because the information of
aparticular channel is received when the channels ofthe transmit-
ter and receiver match.
On a TV, you switch channels to watch
the station (program) you want.
=
=)
=)
The cable coming from
the antenna carries the
TV signals for a variety
of broadcasts.
MIDI has sixteen channels 1—16, and MIDI messages will be
received by the instrument (the receiving device) whose channel
matches the channel of the transmitter.
* If Omni mode is on, data of all MIDI channels will be received
regardless of the MIDI channel setting. If you do not need to control
a specific MIDI channel, you may set Omni On.
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