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Chapter 10: Sound
You can use sound in Adobe®
Flash®
CS4
Professional in several different ways to make your work more interesting
and involving. You can import sounds and edit them after they are imported. You can attach sounds to different kinds
of objects and trigger them in different ways, depending on your desired effect.
Using sounds in Flash
About sounds and Flash
Adobe®
Flash®
CS4
Professional offers several ways to use sound. Make sounds that play continuously, independent of
the Timeline, or use the Timeline to synchronize animation to a sound track. Add sounds to buttons to make them
more interactive, and make sounds fade in and out for a more polished sound track.
There are two types of sounds in Flash: event sounds and stream sounds. An event sound must download completely
before it begins playing, and it continues playing until explicitly stopped. Stream sounds begin playing as soon as
enough data for the first few frames has been downloaded; stream sounds are synchronized to the Timeline for playing
on a website.
If you’re creating Flash content for mobile devices, Flash also lets you include device sounds in your published SWF
file. Device sounds are encoded in the device’s natively supported audio format, such as MIDI, MFi, or SMAF.
You can use shared libraries to link a sound to multiple documents. You can also use the ActionScript® 2.0
onSoundComplete
event or ActionScript® 3.0
soundComplete
event to trigger an event based on the completion of a
sound.
You can load sounds and control sound playback using prewritten behaviors or media components; the latter also
provide a controller for stop, pause, rewind, and so on. You can also use ActionScript 2.0 or 3.0 to load sounds
dynamically.
For more information, see
attachSound (Sound.attachSound
method)
and
loadSound (Sound.loadSound method)
in
ActionScript
2.0 Language Reference
or
Sound class
in
ActionScript
3.0 Language and Components Reference
.
See also
“
Sharing library assets
” on page 162
Importing sounds
You place sound files into Flash by importing them into the library for the current document.
1
Select File
> Import > Import To Library.
2
In the Import dialog box, locate and open the desired sound file.
Note:
You can also drag a sound from a common library into the library for the current document.
Flash stores sounds in the library along with bitmaps and symbols. You need only one copy of a sound file to use that
sound multiple ways in your document.
Updated 5 March 2009