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USING FLASH CS4 PROFESSIONAL
Sound
4
Set export settings.
5
Click Test to play the sound once. Click Stop if you want to stop testing the sound before it finishes playing.
6
Adjust export settings if necessary until the desired sound quality is achieved, and then click OK.
ADPCM and Raw compression options
ADPCM
compression sets compression for 8- or 16-bit sound data. Use the ADPCM setting when you export short
event sounds such as button clicks.
Raw
compression exports sounds with no sound compression.
Preprocessing
Converts mixed stereo sounds to monaural (mono) when you select Convert Stereo To Mono (mono
sounds are unaffected by this option).
Sample Rate
Controls sound fidelity and file size. Lower rates decrease file size but can also degrade sound quality.
Rate options are as follows:
•
5 kHz
Barely acceptable for speech.
•
11 kHz
The lowest recommended quality for a short segment of music and one-quarter the standard CD rate.
•
22 kHz
A popular choice for web playback and half the standard CD rate.
•
44 kHz
The standard CD audio rate.
Note:
Flash cannot increase the kHz rate of an imported sound above the rate at which it was imported.
ADPCM Bits
(ADPCM only) Specifies the bit depth of the sound compression. Higher bit depths produce higher
quality sound.
mp3 compression options
MP3 Compression
Lets you export sounds with mp3 compression. Use mp3 when you are exporting longer stream
sounds such as music sound tracks.
If you are exporting a file that was imported in mp3 format, you can export the file using the same settings the file had
when it was imported.
Use Imported mp3 Quality
Default setting. Deselect to select other mp3 compression settings. Select to export an
imported mp3 file with the same settings the file had when it was imported.
Bit Rate
Determines the bits per second in the exported sound file. Flash supports 8 through 160 Kbps CBR (constant
bit rate). When you export music, set the bit rate to 16
Kbps or higher for best results.
Preprocessing
Converts mixed stereo sounds to monaural (mono sounds are unaffected by this option).
Note:
The Preprocessing option is available only if you select a bit rate of 20
Kbps or higher.
Quality
Determines the compression speed and sound quality:
•
Fast
Yields faster compression but lower sound quality.
•
Medium
Yields somewhat slower compression but higher sound quality.
•
Best
Yields the slowest compression and the highest sound quality.
Speech compression option
Speech
compression exports sounds using a compression that is adapted to speech.
Updated 5 March 2009