E-MU 1212M PCIe - Manual (Page 84)

5 - Effects
Core Effects Descriptions
84 Creative Professional
Reshaper
The Reshaper effect is a special purpose dynamics modification program, designed to
“resculpt” the amplitude envelope of an audio signal. The effect uses an envelope
follower and threshold detector to drive an ADSR-type gain stage, which can impose
new attack, decay, sustain and release profiles on the signal's original envelope.
Applications
• “Punch” Reducer - slow turn-on with added lookahead trims attacks off signals
• “Punch” Enhancement - fast turn on with high thresholds and release gain
expands signal attack transients
• Auto Volume Pedal - long attack times with Attack Retrigger can automatically
simulate use of a guitar volume pedal for gently fading in each note.
• Ambience Reduction - can be used like a gate to suppress ambient reverbera-
tions that below a certain threshold.
Threshold
Release Threshold
0 dB
Release
Level
Sustain
Level
Attack
Time
Decay
Time
Hold
Time Release
Time
0 dB
Original
Waveform
Reshaped
Waveform
When the input signal exceeds an adjustable Threshold, the Attack phase begins and
continues until the gain reaches unity (0dB). After the Attack peaks, the gain stage
immediately transitions into the Decay phase, which continues until the gain falls to
the Sustain level. During the Sustain phase, the gain stage holds a constant level until
the input signal passes below the Release Threshold. During the Release Phase, the gain
returns to the Release Level where it remains until the another input transient triggers
the next Attack phase.