Adobe AUDITION 1.5 - Manual (Page 246)

CHAPTER 11 238
Saving, Exporting, and Closing Files
• mp3PRO® encodes the file mp3PRO. The PRO data helps re-create high frequencies in
the compressed file, especially at low bit rates. An mp3PRO file can still be played back
by an mp3 player that doesn’t support the PRO data, but the quality may be lower than
for a standard mp3 file of that bit rate. For example, a 64 Kbps mp3PRO file sounds
more like a 112 Kbps or 128 Kbps mp3 file if the player supports mp3PRO, but it sounds
like a 64 Kbps mp3 file (or worse) if the player doesn’t support mp3PRO.
For information on advanced mp3PRO options, see “mp3PRO® (.mp3)” in Help.
NeXT/Sun (.au, .snd)
The NeXT/Sun format is standard on NeXT and Sun computers, and it has many data
types. Adobe Audition supports the CCITT A-Law, mu-Law, G.721 ADPCM, and linear
PCM data variants. Like Windows PCM and AIFF, this format can support mono or
stereo, 16- or 8-bit, and a wide range of sample rates when saved as linear PCM.
The NeXT/Sun format is most commonly used for compressing 16-bit data to 8-bit
mu-law data. AU is used quite extensively on the Web and in Java applications and applets.
Options Choose from the following:
• mu-Law 8-bit uses the mu-law 8-bit format to compress the file.
• A-Law 8-bit uses the A-law 8-bit format to compress the file.
• G.721 ADPCM 4-bit applies the standard CCITT G.721 compression to the file
(ADPCM at 32Kbps).
• Linear PCM saves the file as uncompressed, linear PCM (Pulse Code Modulation).
SampleVision (.smp)
The SampleVision format is native to Turtle Beach’s SampleVision program. This format
supports only mono, 16-bit audio. If a file is in a different format, Adobe Audition
prompts you to convert it before saving it.
This format also supports loop points, which you can edit in the Cue List window. The
Label of the cue must be in the format
L o o p n , m where “n” is the loop number from 1 to
8, and “m” is the mode (0 = no looping, 1 = forward loop, 2 = forward/back loop). In the
Play List window, you can enter the number of times to loop the cue range.
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