Roland XV-88 用户手册

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Chapter 7. Adding Effects
Chapter 7
MFX PRM (MFX Parameter)
fig.07-09
MFX Parameter sets the parameters for the Multi-effects 
selected by the Multi-effects type. For more detailed 
information on the parameters that can be set in each Multi-
effect, please refer to 
When the Type parameter in the MFX TYPE page is set 
to 00:THROUGH, the MFX PRM page will not be 
displayed.
MFX CTRL (MFX Control)
fig.07-10
Use this when you want to change the Multi-effects 
parameters in realtime using the specified MIDI messages.
• When the Type parameter in the MFX TYPE page is set 
to 00:THROUGH, the MFX CTRL page will not be 
displayed.
• In Performance mode, when the Source parameter in the 
MFX TYPE page is set to PERFORM, you cannot use the 
Multi-effects controller if the MFX Control Channel 
parameter (PERFORM/COMMON/PERFORM MFX 
CH) is set to OFF (p. 51).
What is the Multi-Effects Controller?
If you wanted to change the volume of Multi-effects 
sounds, the delay time of Delay, and the like, using an 
external MIDI device, you would need to send 
System 
Exclusive messages
—MIDI messages designed 
exclusively for the XV-88. However, System Exclusive 
messages tend to be complicated, and the amount of 
data that needs to be transmitted can get quite large.
For that reason, a number of the more typical of the XV-
88’s Multi-effects parameters have been designed so they 
accept the use of Control Change (or other) MIDI 
messages for the purpose of making changes in their 
values. For example, you can use the Pitch Bend lever to 
change the amount of distortion, or use the keyboard’s 
touch to change the delay time of Delay. The parameters 
that can be changed are predetermined for each type of 
multi-effect; among the parameters described in 
#
.
The function that allows you use MIDI messages to make 
these changes in realtime to the Multi-effects parameters 
is called the 
Multi-effects Controller
. Up to four Multi-
effects Controllers can be used in a single Patch/Rhythm 
Set/Performance.
When the Multi-effects Controller is used, you can select 
the amount of control (Sens parameter) applied, the 
parameter selected (Destination parameter), and the 
MIDI message used (Source parameter).
By using the Matrix Controller instead of the Multi-
Effects controller, you can also change the 
parameters of some popular Multi-effects in realtime 
(p. 80).