Adobe Flash Professional CS3 Instrukcja Użytkownika Strona 303

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FLASH CS3
User Guide
297
See also
“Publishing overview” on page 419
Set publish options for the Flash SWF file format” on page 421
“Exporting Flash content, images, and video” on page 448
Compress a sound for export
1 Do one of the following:
Double-click the sound’s icon in the Library panel.
Right-click (Windows) or Control-click (Macintosh) a sound file in the Library panel and select Properties from
the context menu.
Select a sound in the Library panel and select Properties from the Panel menu in the upper right corner of the
panel.
Select a sound in the Library panel and click the Properties button at the bottom of the Library panel.
2 If the sound file has been edited externally, click Update.
3 For Compression, select Default, ADPCM, mp3, Raw, or Speech.
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.
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 Convertsmixedstereosoundstomonaural(mono)whenyouselectConvertStereoToMono(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.
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.
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