Apple postproduction Handbuch

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Using the above procedures, you can also export files to create an AC-3 audio file using 
more than two channels. For example, to create files for a 5.1 AC-3 file, you could:
Export a mix using selected tracks for the front left and right channels
Export a mix using selected tracks for the rear left and right channels
Export a mono mix using selected tracks for the center channel (usually dialog)
Export a mono mix that contains all of the audio tracks used in the previous exports 
for the LFE channel. A.Pack can use a low-pass filter to ensure that only the low 
frequencies are included in this channel. A.Pack can also ensure that these same low 
frequencies are removed from the other channels.
© 
2004 Apple Computer, Inc. All rights reserved. 
Apple, the Apple logo, DVD Studio Pro, Final Cut Pro, iMovie, PowerBook, Power Mac, and QuickTime are trademarks 
of Apple Computer, Inc., registered in the U.S. and other countries. A.Pack, Cinema Tools, Finder, GarageBand, iDVD, 
Keynote, and LiveType are trademarks of Apple Computer, Inc. Adobe and Photoshop are registered trademarks 
of Adobe Systems Incorporated in the U.S. and/or other countries.
42708APP  Page 32  Tuesday, June 8, 2004  3:05 PM