Roland E-A7 Reference Manual page 36

Sampling Menu
Item / Pa-
Value Explanation
rameter
TVA Envelope
T1 T2 T3
Level
L2 L3
L1
Note on
CONTROL
These settings determine how the sound is played.
Specifies how the sound is played when you press the
same key multiple times.
SINGLE:
one at a time. If you play a sustained sound multiple
Assign MULTI, times in succession, the previous note is silenced and
Type
SINGLE the next note is sounded.
MULTI:
together. Even if you play a sustained sound multiple
times in succession, the notes are sounded together
without silencing the previous notes.
This setting lets you prevent drum instruments with
the same settings from sounding together.
On an acoustic drum set, it is not possible to play the
Mute
OFF, 1–31 open hi-hat and closed hi-hat sounds simultaneously.
Group
You can use this setting to reproduce this situation.
You can specify 31 groups. With the
drum instrument will not belong to any group.
36
T4
Time
Note o
Notes played on the same key are heard only
Notes played on the same key are sounded
"OFF"
setting, the
Item / Pa-
Value Explanation
rameter
When a loop waveform (p. 31) is selected, the sound
will normally continue as long as the key is pressed. If
you want the sound to decay naturally even if the key
Envelope NO-SUS,
remains pressed, set this to
Mode SUSTAIN
* If a one-shot type wave is selected, it will not sustain
even if this parameter is set to
"SUSTAIN "
Note when selecting a waveform
The E-A7 uses complex PCM waveforms as the basis for its sounds. For this
reason, you should be aware that if you specify a waveform that is very different
than the original waveform, the result may not be what you expect. The E-A7's
internal waveforms can be categorized into the following two types.
One-shot:
These are sounds with a short decay time. One-shot waveforms contain the entire
duration of the sound from the attack until it decays to silence. Some of these waveforms
capture a complete sound such as a percussion instrument, but there are also many at-
tack component sounds such as the hammer strike of a piano or the fret noise of a guitar.
Loop:
These are sounds with a long decay, or sustaining sounds. Looped waveforms will
repeatedly play a portion of a sound once it has reached a relatively stable state. These
sounds also include numerous component sounds, such as a vibrating piano string or a
resonating pipe.
The following illustration shows an example of a sound created by combining
a one-shot waveform with a loop waveform. (This example is of an electric
organ.)
TVA ENV for looped Organ TVA ENV for one-shot Key
waveform (sustain portion) -click waveform (attack portion)
Level
Time
Note o
Note when selecting a one-shot waveform
It's not possible to use the envelope settings to give a one-shot waveform a longer decay
than the original waveform contains, or to make it a sustaining sound. Even if you made
this type of envelope setting, you would be trying to bring out something that doesn't
exist in the original waveform.
Note when selecting a looped waveform
Many acoustic instruments such as piano or sax are marked by a sudden change in
timbre at the very beginning of the sound, and this rapid change is what gives the instru-
ment its distinctive character. When using these waveforms, it's best to use the complex
tonal changes in the attack portion of the sound without attempting to modify them;
use the envelope only to modify the decay portion of the sound as desired. If you use the
envelope to modify the attack as well, the envelope settings will be affected by the attack
of the waveform itself, and you may not get the result you intend.
Level
Tone change stored
with the wave
Envelope
for the TVF lter
Resulting
tone change
"NOSUS "
Resulting TVA ENV
change
Note o
Looped portion
Time