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Making adjustments to audio speed, Synchronizing separately captured audio and video, Synchronizing separately captured – Apple Cinema Tools 4 User Manual

Page 139: Audio and video

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4

Follow the steps in

Using Batch Reverse Telecine for Multiple Source Clips

to perform the

batch reverse telecine.

Note: If you connected the original reverse-telecined clips to the database records using
the Reconnect command, the new reverse-telecined clips should automatically be
connected to the database.

Making Adjustments to Audio Speed

If you need to make audio speed adjustments in order to reestablish synchronization
with the video, there are various ways you can do this.

Note: The reverse telecine and conform processes automatically adjust the audio speed
in a clip to match changes made to the video frame rate of the same clip.

• You can adjust the speed with the Final Cut Pro Speed command. First, unlink the audio

and video clips. Select the audio clip in the Timeline, then choose Modify > Speed and
enter a new speed percentage. For example, to slow down an audio clip by 0.1 percent,
enter “99.9.” Relink the audio and video clips when you have finished modifying the
speed of the audio clip.

• Some sound recorders and audio playback equipment can have their playback speed

adjusted to sync with the video. When using such equipment, you can capture the
audio with the correct speed for synchronization.

• You can use specialized equipment, such as that available from Aaton, designed to

control and adjust the audio for proper sync with any video rate. You use this equipment
before capturing the audio into your computer.

• If you don’t need the audio speed adjusted for editing, but you do need it adjusted for

the finished project, you can have the audio finished at an audio post-production facility
that can adjust the speed.

Synchronizing Separately Captured Audio and Video

If your sound and picture were not synchronized onto videotape, but were instead
captured separately, you can synchronize them in Final Cut Pro.

In Final Cut Pro, a feature called merged clips lets you link one or more source media files
together so that they become one clip. First you synchronize them, and then you merge
them into one clip.

139

Chapter 8

Preparing the Source Clips for Editing