15.0. Introduction

Proper use of sound in an application, game, or web site can greatly enhance the user's experience. In the Flash IDE, you can import sound into the library, put sound on timeline frames, attach sounds to movie clips, and so on. This chapter covers programming sound with ActionScript 3.0, using the Sound class and its related classes.

The Sound class is set up to load and stream external MP3 sound files. Since the files aren't embedded in the .swf and are being loaded from an external URL, the domain security restrictions outlined in Chapter 3 apply.

Classes covered in this chapter include:

• Sound

• SoundChannel

• SoundLoaderContext

• SoundMixer

• SoundTransform

These are all part of the flash.media package, so as your first order of business, make sure that you import flash.media.Sound in each example as well as any of the other classes the example uses.