Roland JUNO-G Electronic Keyboard User Manual


 
33
Creating a Patch
6.
Use the VALUE dial, [INC] [DEC], or [ ] [ ] and [F1 (USER)]
[F2 (CARD)] to select the write destination and patch number.
* By pressing [F4 (COMPR)] to add a check mark (
), you can check
the write-destination patch (Compare function).
7.
Press [F6 (WRITE)].
A message will ask you for confirmation.
8.
Press [F6 (EXEC)] to execute the save operation.
* To cancel, press [F5 (CANCEL)].
Never switch off the JUNO-G while data is being saved.
One-shot Waveform and Loop
Waveform
The internal waveforms of the JUNO-G fall into the following two
groups.
One-shot:
These waveforms contain sounds that have short decays. A one-shot
waveform records the initial rise and fall of the sound.
The JUNO-G also contains many other one-shot waveforms that are
elements of other sounds. These include attack components such as
piano-hammer sounds and guitar fret noises.
* 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.
Loop:
These waveforms include sounds with long decays as well as
sustained sounds. Loop waveforms repeatedly play back (loop) the
portion of the waveform after the sound has reached a relatively
steady state.
The JUNO-G’s looped waveforms also include components of other
sounds, such as piano-string resonant vibrations and the hollow
sounds of brass instruments.
The following diagram shows an example of sound (electric organ)
that combines one-shot and looped waveforms.
fig.06-005.e
Tips for Using an Acoustic Instrument’s
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.
fig.06-006.e
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
JUNO-G_e.book 33 ページ 2006年2月13日 月曜日 午後2時44分