Roland RS-70 业主指南

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页码 196
 
32
Applying various effects to the sound
 
 
Changing the sound’s volume (ENVELOPE)
 
The volume continues to change from the time a key is pressed to when it is released.
A: Attack Time: The time from when the keyboard is pressed until the maximum 
tonal change is reached.
D: Delay Time: The time from when the maximum tonal change is reached until the 
Sustain Level is reached.
S:  Sustain level: Volume that is sustained while you hold down the key
R: Release Time: The time from when the keyboard is released until the sound 
disappears.
Use the ENVELOPE 3 knobs to change the A, D, and R times.
 
*
Each tone has its own Sustain level, which cannot be modified.
 
fig.q05-04.e 
fig.q05-05
 
1.
 
Press the patch modify select button so the ENV indicator is lit.
 
2.
 
Turn the [ATTACK] knob.
 
Turning this to the right (clockwise) increases the time it takes for the sound to rise, 
while turning it to the left (counterclockwise) shortens this time.
 
3.
 
Turn the [DECAY] knob.
 
Turning this to the right increases the time it takes for the sound to reach the Sustain 
Level, while turning it to the left shortens this time.
 
4.
 
Turn the [RELEASE] knob.
 
Turning this to the right increases the time it takes for the sound to disappear, while 
turning it to the left shortens this time.
Volume
A
D
R
A: Attack time
D: Decay time
R: Release time
Note-on
Note-off
Sustain
Level
Time
Sound ends
The “envelope” is the curve 
that shows how the volume 
of an instrument changes 
from the beginning of a 
note to its end. Each 
musical instrument has a 
distinctive type of 
envelope, but this can 
change depending on how 
the instrument is played, 
and is an important factor 
in the character of the 
sound. For example, when 
a trumpet is blown strongly 
it produces a piercing 
sound with a rapid attack, 
but when blown softly it 
produces a gentler and 
more muted attack.
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RS-70_e4.book 32 ページ 2003年8月18日 月曜日 午前9時47分