Roland XV-88 用户手册

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Chapter 11. Using the XV-88 as a GM Sound Module (GM Mode)
The XV-88 features a 
GM mode
—a convenient way to play 
back or create GM score data (music files for General MIDI 
sound module). You’re able to play back commercial GM 
score data releases and even modify various parameter 
settings for enhanced musical expression.
Entering GM Mode
GM mode can be likened to a Performance for which the 
sound generator has been set to comply with General MIDI 
system, and to which GM-compliant Patches and Rhythm 
Sets have been assigned.
fig.11-01.e
The GM PLAY page shows the Patch or Rhythm Set assigned 
to each Part.
Each time you enter GM mode, the GM2 STANDARD is 
assigned to Part 10, and Piano 1 is assigned to other Parts. 
You can also select other GM Patches and GM Drum Sets for 
each Part to match the performance.
1. Hold down [SHIFT] and press [PERFORM] to call up the 
GM PLAY page.
When you switch the XV-88 into GM mode, the sound 
generator initializes itself for basic General MIDI 
settings.
2. To change the current Part, press
or
.
3. To change the GM Patch or GM Rhythm Set assigned to 
the Part, perform the same procedure as you do when 
you select a Patch or Rhythm Set.
Initializing the Sound Generator for 
General MIDI System Basic Settings
To play back a GM score correctly, the sound generator must 
first be initialized to basic General MIDI system settings. The 
XV-88’s sound generator is initialized in the General MIDI 
settings.
• When Switching to GM Mode
• When it receives a General MIDI/General MIDI 2 
System On message from an external MIDI device
• When the music data being played back on an external 
MIDI device contains a General MIDI/General MIDI 2 
System On message
• When the XV-88’s power is turned on
• When you execute the GM/GM2 Initialize function (p. 198)
Playing Back GM Scores
When the XV-88 is in GM mode, it plays back GM scores 
correctly. But beyond this, the XV-88 provides extended 
features not defined in General MIDI specifications, and if 
you create music files using these extended features, your 
song may not play back correctly on other General MIDI-
compatible sound modules.
General MIDI/General MIDI 2 System On messages are 
normally placed at the beginning of a GM score. This 
means that if a GM score is played back from the middle 
of the song, the XV-88 will not switch to GM mode, and 
playback may not be correct. So to be safe, it’s 
recommended to manually set the XV-88 to GM mode 
before playing back a GM score.
When the XV-88 receives a GS Reset message, the XV-88 
is enabled for the GS format (a shared set of 
specifications proposed by Roland for standardization of 
multi-timbral sound modules). This permits playback of 
music data bearing the GS logo (GS music data). 
However, Roland’s Sound Canvas Series (including the 
SC-8850 and SC-8820 models) feature a different sound 
module format and expanded tone map, so data created 
exclusively for the Sound Canvas Series may not play 
back properly on the XV-88.
GM Patch/Rhythm Set (number, group)
Part number
General MIDI/General MIDI 2 System On 
Message
The General MIDI/General MIDI 2 System On messages 
put the unit in a state that conforms to the General MIDI 
System and initializes a General MIDI-compatible sound 
generator.
If the Rx GM On/Rx GM2 On parameter (SYSTEM/
MIDI/SYSTEM MIDI) is set OFF, General MIDI/
General MIDI 2 System On messages cannot be 
received.