Shockwave Audio can compress any internal sounds in a movie. Although internal sounds are not streamed, compressing them with Shockwave Audio dramatically decreases the size of the sound data in a movie, shortens the download time from the Internet, and saves disk space.

Use Shockwave Audio settings to specify compression settings for internal sound cast members. The selected compression settings apply to all internal sound cast members. You can’t specify different settings for different cast members.

You can select compression settings at any time, but compression occurs only when the movie is compressed with the Create Projector, Save As Shockwave Movie, or Update Movies methods. When you create a projector, Director compresses sounds only if the Compressed option is turned on in the Projector Options dialog box. Compressing sounds can substantially increase the time required to compress a Director movie. For more information, see Creating projectors.

When you distribute a movie that contains sounds compressed with Shockwave Audio, the SWA Decompression Xtra is already included in the Shockwave Player. If you compress sounds in Shockwave format in a projector, you must provide the SWA Decompression Xtra for the projector.

1. Select File > Publish Settings.
2. Select the Shockwave tab.
3. Select Compression Enabled to turn on compression.
4. Select a setting from the kBits/second menu.
5. Select Convert Stereo to Mono if you want to convert a stereo file to monaural.