Roland Fantom-Xa 业主指南
222
Troubleshooting
Song data does not play back correctly
Check the following points.
• Has the Receive General MIDI/General MIDI 2 System On
Switch been turned ON?
Set the Receive GM System ON/Receive GM2 System ON
parameter (SYSTEM/MIDI/RX) to “ON” (p. 198).
parameter (SYSTEM/MIDI/RX) to “ON” (p. 198).
• Are you trying to start playback from midway through the
song?
The beginning of a GM score song contains a General MIDI/
General MIDI 2 System On message. In some cases, a GM Score
cannot be played back correctly unless this message is received.
General MIDI 2 System On message. In some cases, a GM Score
cannot be played back correctly unless this message is received.
• Are you trying to play song data designed for the GS Format?
When the Fantom-Xa receives a GS Reset message, the Fantom-
Xa is enabled for the GS format. This permits playback of music
data bearing the GS logo (GS music data). However, data
created exclusively for the Sound Canvas Series may not play
back properly on the Fantom-Xa.
Xa is enabled for the GS format. This permits playback of music
data bearing the GS logo (GS music data). However, data
created exclusively for the Sound Canvas Series may not play
back properly on the Fantom-Xa.
After recording, the song does not sound when I play it back.
Have the tracks been muted?
The tempo is different than the last time I played back the song.
If a song is played back after the tempo is changed, then the
new tempo is not saved unless the song is saved to the user
memory or memory card. Conversely, the previous tempo will
be erased when you save the song. When saving songs,
carefully check the current tempo.
memory or memory card. Conversely, the previous tempo will
be erased when you save the song. When saving songs,
carefully check the current tempo.
Locate Positions set in song have disappeared.
Check the following points.
• Was the disk saved in a format other than MRC-Pro format
(SMF 0 or 1)? Locate positions will be saved with the song data
only when saving in MRC-Pro format.
only when saving in MRC-Pro format.
• Are you using Quick Play? In order to use locate positions, the
song must be loaded into the Fantom-Xa.
Sound Device Tones Are Switched Arbitrarily
• Has an unneeded program change been input? Or are there
duplicate program changes?
• Were any mistakes made in setting the data MIDI channels
when Program Change messages were input?
Data supposed to be present does not appear in microscope.
Check the following points.
• Are the wrong tracks selected?
After using a MIDI sequencer to play a song, sounds stopped
playing, and no sound is played even when Program Changes
are sent.
are sent.
It could be that a Bank Select in the song data that is not
specified by the Fantom-Xa was encountered in the song. No
sound is played if the tone group is not one designated by the
Fantom-Xa with Bank Select MSB/LSB. Note that if you omit
the Bank Select, and send only the Program Change, the tone in
the currently selected group that has the specified Program
Change number will play. Try reselecting the tone using the
panel controls. Furthermore, when selecting tones from an
external MIDI device, be sure to send the Bank Select MSB/LSB
and the Program Change as a single set for reliable
reproduction. First sending the MSB and LSB (the order in
which these are sent does not matter), followed by the Program
Change.
sound is played if the tone group is not one designated by the
Fantom-Xa with Bank Select MSB/LSB. Note that if you omit
the Bank Select, and send only the Program Change, the tone in
the currently selected group that has the specified Program
Change number will play. Try reselecting the tone using the
panel controls. Furthermore, when selecting tones from an
external MIDI device, be sure to send the Bank Select MSB/LSB
and the Program Change as a single set for reliable
reproduction. First sending the MSB and LSB (the order in
which these are sent does not matter), followed by the Program
Change.
In some cases, you may be unable to hear any sound after
playing the last song that was faded-out. This may be because
the volume has been lowered by volume messages or
expression messages. Check the value of these messages, and
set them to appropriate values.
playing the last song that was faded-out. This may be because
the volume has been lowered by volume messages or
expression messages. Check the value of these messages, and
set them to appropriate values.
Performances are sluggish, or have interruptions.
Problems of sluggish and interrupted performances can crop up
very easily when the sequencer or sound generator used for the
performance has to handle heavy data loads.
performance has to handle heavy data loads.
Main causes and possible corrective measures are considered
below.
below.
• Are more than 128 voices playing simultaneously?
Reduce the number of voices. The composition of Fantom-Xa
Patches is such that up to eight Waves may be used for one
Patch. When using such Patches, even though only one sound
may be heard, it is actually eight sounds that are being played
simultaneously. In addition, with certain sounds like
continuous sounds with long releases, even though the actual
sound may not be audible to you, processing for playing the
sound is still underway, so in these cases as well, the
performance data can differ from the actual number of voices
being played.
Patches is such that up to eight Waves may be used for one
Patch. When using such Patches, even though only one sound
may be heard, it is actually eight sounds that are being played
simultaneously. In addition, with certain sounds like
continuous sounds with long releases, even though the actual
sound may not be audible to you, processing for playing the
sound is still underway, so in these cases as well, the
performance data can differ from the actual number of voices
being played.
• Are you using a Patch that uses a lot of LFO?
Try changing to a different Patch. LFO processing invariably
places a big load on the machine, so heavy use of the LFO slows
down processing for the Fantom-Xa overall, which can end up
having affecting the expression of sounds themselves.
places a big load on the machine, so heavy use of the LFO slows
down processing for the Fantom-Xa overall, which can end up
having affecting the expression of sounds themselves.
• Is the data concentrated at the beginning of the beats in the
sequence data?
Avoid overlapping data with the same timing by setting an
offset of 1–2 clocks instead. Data may easily become
concentrated at the beginning of the beats in the song data
when, for example, the song data is input using Step Recording,
or if the data is quantized after being input with a keyboard in
real time. Because of this, large amounts of data are sent to the
Fantom-Xa, and the processing for expressing sounds becomes
bogged down.
offset of 1–2 clocks instead. Data may easily become
concentrated at the beginning of the beats in the song data
when, for example, the song data is input using Step Recording,
or if the data is quantized after being input with a keyboard in
real time. Because of this, large amounts of data are sent to the
Fantom-Xa, and the processing for expressing sounds becomes
bogged down.
Issues Related to Sequencer
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