MACROMEDIA FLASH MX 2004-USING FLASH Use Manual page 210

Set export settings.
4.
Click Test to play the sound once. Click Stop if you want to stop testing the sound before it
5.
finishes playing.
Adjust export settings if necessary until the desired sound quality is achieved.
6.
Click OK.
7.
The Default compression option uses the global compression settings in the Publish Settings
dialog box when you export your SWF file. If you select Default, no additional export settings
are available.
Using the ADPCM compression option
The ADPCM compression option sets compression for 8- or 16-bit sound data. Use the ADPCM
setting when you export short event sounds such as button clicks.
To use ADPCM compression:
In the Sound Properties dialog box, select ADPCM from the Compression menu.
1.
For Preprocessing, select Convert Stereo to Mono to convert mixed stereo sounds to monaural
2.
(mono). (Mono sounds are unaffected by this option.)
For Sample Rate, select an option to control sound fidelity and file size. Lower rates decrease
3.
file size but can also degrade sound quality. Rate options are described in the following list:
5 kHz is barely acceptable for speech.
11 kHz
is the lowest recommended quality for a short segment of music and is one-quarter of
the standard CD rate.
22 kHz is a popular choice for web playback and is half the standard CD rate.
44 kHz is the standard CD audio rate.
Note: Flash cannot increase the kHz rate of an imported sound above the rate at which it
was imported.
Using the MP3 compression option
The MP3 compression option 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.
To export an imported MP3 file with the same settings the file had when it was imported:
In the Sound Properties dialog box, select MP3 from the Compression menu.
1.
Select Use Imported MP3 Quality (the default setting). Deselect this option to select other MP3
2.
compression settings, as defined in the following procedure.
210 Chapter 11: Working with Sound