Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 377

AFTER EFFECTS CS3 371
User Guide
See also
"Preview video and audio" on page 124
Bass & Treble effect
The Bass & Treble effect boosts (increases) or cuts (decreases) the low frequencies (bass) or the high frequencies
(treble) of the audio. For greater control, use the Parametric EQ effect.
See also
"Preview video and audio" on page 124
Delay effect
The Delay effect repeats audio after a specified amount of time. This effect simulates sound bouncing off a surface,
such as a wall.
To simulate the acoustic ambience of a room, use the Reverb effect.
Time between the original sound and its echo, in milliseconds.
Delay Time
Volume of the first delayed audio, as a fraction of the original.
Delay Amount
Amount of the echo that is fed back into the delay line to create subsequent echoes.
Feedback
The amounts of the original (dry) sound and delayed (wet) sound in the final output. Values of
Dry Out, Wet Out
50% are commonly used.
See also
"Preview video and audio" on page 124
Flange & Chorus effect
Flange is an audio effect caused by mixing the original audio with a copy that is delayed by a varying amount that
cycles over time. The frequency of the copy is also offset by an amount related to the delay. Chorus uses a larger delay,
to make one voice or instrument sound like many.
The default settings for the Flange & Chorus effect are for flange. To create a chorus result, use values something like
the following: 40 for Voice Separation Time (or higher for a greater chorus result), 4 for Voices, 0.1 for Modulation
Rate, 50% for Modulation Depth, and 90 for Voice Phase Change, with Stereo Voices selected.
The time in milliseconds that separates each voice. Each voice is a delayed version of the
Voice Separation Time
original sound. Use values of 6 or lower for flange, and higher values for chorus.
The number of voices in the processed (wet) audio.
Voices
The rate in Hz at which the modulation cycles.
Modulation Rate
The amount of modulation.
Modulation Depth
The modulation phase difference in degrees between each subsequent voice. Divide 360 by the
Voice Phase Change
number of voices to find the optimum value.
Inverts the phase of the processed (wet) audio, emphasizing more of the high frequencies; not inverting
Invert Phase
the phase emphasizes more of the low frequencies.