Roland GI-20 - Manual (Page 15)

15
Chapter 1 Try Playing Some Sounds
1. Turn the PARAMETER knob to “MIDI CHANNEL.”
fig.01-10
2. Press [SELECT] to select BASIC CHANNEL (BASIC
CH).
When BASIC CHANNEL is selected, the two indicators
at the left light up.
fig.01-13
3. Press [PATCH/VALUE] to select the Basic channel
number.
fig.01-14
* Since the six channels used in MONO MODE are
consecutive, selecting Channel 12–16 as the Basic channel
results in the MIDI channel number for the sixth string to
exceed the allowable range of 1–16. In this case, the display
flashes, and the performance data is sent by Channel 11–16.
4. When you have finished making the settings, turn the
PARAMETER knob to return to “PLAY MODE.”
* The Basic channel is a system parameter. It is saved
automatically when the PARAMETER knob is turned, even
without the Write procedure being carried out, and the
settings values are applied to all patches.
Setting the Control Channel (CTL CH)
You can connect a foot controller or other such device to the
MIDI IN connector to switch patches and perform other
operations. In this case, you will need to set the “control
channel” for reception of MIDI messages.
The control channel is a dedicated channel used only for
receiving MIDI messages transmitted over the channel set to
the same number. MIDI messages transmitted over other
channels are disregarded.
* However, when the control channel is set to “OMNI mode”
(Omni), MIDI messages are received regardless of the channel.
* With the factory settings, the control channel is set to
“OMNI.”
The GI-20 can receive the following types of MIDI messages
over the control channel.
Control Change
Control Change messages received over the control channel
are transmitted over the basic channel (in MONO mode, all
of the transmission channels for the strings).
Additionally, you can control the functions set in Assign (p.
19) by assigning Control Changes to the general (assignable)
controllers 3–8.
General Purpose Controller 3 (CC #18): Expression Pedal
General Purpose Controller 4 (CC #19): Foot Switch 1
General Purpose Controller 5 (CC #80): Foot Switch 2
General Purpose Controller 6 (CC #81): GK Volume
General Purpose Controller 7 (CC #82): S1 Switch
General Purpose Controller 8 (CC #83): S2 Switch
* These Control Change messages are not transmitted externally
to other devices.
* For data corresponding to the Foot Switches 1/2 and S1/S2
Switches, 00h–3Fh are output as 00h (OFF), and 40h–7fh are
output as 7fh (ON).
L i t
The GI-20’s MIDI IN/OUT cannot be used under the
following conditions.
• When MIDI IN and OUT are connected directly
• When the Soft Thru for the sequencer connected to
MIDI IN/OUT is set to ON
In either case, the error message “E3” (p. 37) appears,
and the GI-20 stops functioning normally.