Roland Piano - Manuel (Page 45)

45
Creating a Patch
Creating a Patch
The following diagram shows an example of sound (electric organ)
that combines one-shot and looped waveforms.
fig.03-07.e
Cautions When Using a One-shot
Waveform
It is not possible to use the envelope to modify a one-shot waveform
to create a decay that is longer than the original waveform, or to turn
it into a sustaining sound. If you were to program such an envelope,
you would be attempting to shape a portion of the sound that simply
doesn’t exist, and the envelope would have no effect.
Cautions When Using a Loop
Waveform
With many acoustic instruments such as piano and sax, extreme
timbral changes occur during the first few moments of each note.
This initial attack is what defines much of the instrument’s character.
For such waveforms, it is best to use the complex tonal changes of
the attack portion of the waveform just as they are, and to use the
envelope only to modify the decay portion. If you attempt to use the
envelope to modify the attack portion as well, the characteristics of
the original waveform may prevent you from getting the sound that
you intend.
fig.03-08.e
Saving Patches You’ve Created
(Write)
Changes you make to sound settings are temporary, and will be lost
if you turn off the power or select another sound. If you want to keep
the modified sound, you must save it in the internal
USER group
(user memory)
When you modify the settings of a patch, the PATCH PLAY screen
will indicate “EDITED.” Once you save the patch into internal
memory (user memory), the “EDITED” indication goes away.
When you perform the save procedure, the data that previously
occupied the save destination will be lost. However, the factory
setting data can be recovered by performing the Initialization
procedure (p. 43).
1. Make sure that the patch you wish to save is selected.
2. Press [MENU].
The Menu window appears.
fig.01-17_50
3. Press or to select a “Patch Edit,” and then press [8
(Select)].
The Patch Edit screen appears.
fig.02-10_50
4. Press [6 (Write)].
The Patch Write window appears.
fig.03-09.e
5. Press or to specify the save-destination patch.
TVA ENV for looped Organ
waveform (sustain portion)
Note off
Time
Level
Resulting TVA ENV
change TVA ENV for one-shot Key
-click waveform (attack portion)
Note off
+ =
Tone change stored
with the wave
Envelope
for the TVF filter
Resulting
tone change
Looped portion
Time
Level
Save-destination patch