Adobe PREMIERE PRO 2, Руководство пользователя, Страница: 355 / 448

ADOBE PREMIERE PRO 2.0
User Guide
349
Delay effect
The Delay effect adds an echo of the audio clip’s sound that plays after a specified amount of time. This effect is
available for 5.1, stereo, or mono clip. The Delay effect has the following settings:
Delay
Specifies the amount of time before the echo plays. The maximum is 2 seconds.
Feedback
Specifies a percentage of the delayed signal to be added back into the delay to create multiple decaying
echoes.
Mix
Controls the amount of echo.
DeNoiser effect
The DeNoiser effect automatically detects tape noise and removes it. Use this effect to remove noise from analog
recordings, such as magnetic tape recordings. This effect is available for 5.1, stereo, or mono clip.
The DeNoiser effect has the following settings:
Noise Floor
Specifies the level (in decibels) of the noise floor as the clip plays.
Freeze
Stops the noise floor estimation at the current value. Use this control to locate noise that drops in and out of
a clip.
Reduction
Specifies the amount of noise to remove within a range of –20 to 0 dB.
Offset
Sets an offset value between the automatically detected noise floor and the value defined by the user. This is
limited to a range between –10 and +10 dB. Offset allows additional control when the automatic denoising is not
sufficient.
Dynamics effect
The Dynamics effect provides a set of controls that can be combined or used independently to adjust audio. Use
either the graphical controls in the Custom Setup view, or adjust values in the Individual Parameters view. This effect
is available for 5.1, stereo, or mono clips.
The Dynamics effect has the following settings:
AutoGate
Cuts off a signal when the level falls below the specified threshold. Use this control to remove unwanted
background signals in recordings, such as a background signal in a voice-over. Set the gate to close whenever the
speaker stops, thereby removing all other sounds. The LED display colors indicate the gate’s mode: open (green),
attack or release (yellow), and closed (red). Use the following controls for Gate:
•
Threshold
Specifies the level (between –60 and 0 dB) that the incoming signal must exceed to open the gate. If the
signal level falls below this level, the gate closes, muting the incoming signal.
•
Attack
Specifies the time the gate takes to open after the signal level exceeds the threshold.
•
Release
Sets the time (between 50 and 500 milliseconds) the gate takes to close after the signal level has fallen
below the threshold.
•
Hold
Specifies the time (between 0.1 and 1000 milliseconds) the gate stays open after the level has fallen below
the threshold.