EastWest Hollywood Orchestra Opus Edition Virtual Instrument Plug-In (Download) - Manual (Page 142)

HOLLYWOOD ORCHESTRA OPUS EDITION C O N T E N T S <
CHAPTER 4: PLAY 142 C H A P T E R <
Click on the PRESET MENU containing the name of the current preset selection to reveal a
drop-down list of available presets. Click on the desired preset to select it, and a check-
mark will indicate it is the current selection.
Adjust the
PRE-DELAY value to change the onset time (in milliseconds) of the convolved
audio signal.
Adjust the
VOLUME to specify the amount of reverb to apply to the signal.
Click the MASTER button to toggle the on/off state of the Master Reverb control. When
enabled the Reverb ‘On’ button becomes illuminated and reverb is applied to all instru-
ments within a given instance of Opus, saving CPU resources.
4.2.9 Envelope
The Envelope controls the volume of a sound across 5 stages. Each knob controls the
length (measured in milliseconds) or loudness (measured in decibels) of the stages of
the envelope. All instruments are programmed with envelope values to achieve a natural
result, so please be careful when changing them.
Stages of the Envelope
The stages of the envelope determine how long it takes for the sound to go from the ini-
tial attack to the beginning of the sustain stage. Typically, a sound begins to drop in vol-
ume immediately after reaching its loudest
point, but using the Hold value maintains
the volume at its loudest point until reach-
ing the decay stage.
• CURVE adjusts the slope of the Attack
stage, making it either convex or con-
cave.
• ATTACK is measured in milliseconds (ms),
and starts at the beginning of the note
until it reaches its highest volume.
• HOLD maintains the loudest volume of
the attack for the specified time measured in milliseconds (ms).
• DECAY is the time it takes in milliseconds (ms) to drop from the loudest point of the
attack or hold stage, to the sustain stage that follows.
• SUSTAIN is the loudness stage of the sound measured in decibels (dB) after the initial
attack and hold stages, and until the note is released.
• RELEASE determines how long the sound remains audible after a note is released,
measured in milliseconds (ms).