Adobe 25520388 - Premiere Pro - PC, Инструкция по использованию, Страница: 419 / 464

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USING ADOBE PREMIERE PRO
Effects and transitions
Last updated 1/16/2012
Volume effect
Use the Volume effect in place of the Fixed Volume effect if you want to render Volume before other Standard effects.
The Volume effect creates an envelope for a clip so that you can increase the audio level without clipping. Clipping
occurs when the signal exceeds the dynamic range that’s acceptable for your hardware, often resulting in distorted
audio. Positive values indicate an increase in volume; negative values indicate a decrease in volume. The Volume effect
is available for clips only in 5.1, stereo, or mono tracks.
More Help topics
“ Normalize one or more clips ” on page 235
“ Normalize the Master track ” on page 236
Audio crossfade transitions
See also “ Working with audio transitions ” on page 288.
Constant Gain transition
The Constant Gain crossfade changes audio at a constant rate in and out as it transitions between clips. This crossfade
can sometimes sound abrupt.
Constant Power transition
The Constant Power crossfade creates a smooth, gradual transition, analogous to the dissolve transition between video
clips. This crossfade decreases audio for the first clip slowly at first and then quickly toward the end of the transition.
For the second clip, this crossfade increases audio quickly at first and then more slowly toward the end of the
transition.
Exponential Fade transition
Exponential Fade fades out the first clip over a smooth logarithmic curve while fading up the second clip, also over a
smooth logarithmic curve. Selecting an option from the Alignment control menu, you can specify the positioning of
the transition.