Adding Sound > Compressing sounds for export |  |

Compressing sounds for export

You can select compression options for individual event sounds and export the sounds with those settings. You can also select compression options for individual stream sounds. However, all stream sounds in a movie are exported as a single stream file, using the highest setting of all those applied to individual stream sounds. This includes stream sounds in video objects.

You choose compression options for individual sounds in the Sound Properties dialog box. You can also choose global compression settings for event sounds or stream sounds in the Publish Settings dialog box. These global settings are applied to individual event sounds or all stream sounds if you do not select compression settings for the sounds in the Sound Properties dialog box. See Publishing Flash documents.

You can also override export settings specified in the Sound Properties dialog box by selecting Override Sound Settings in the Publish Settings dialog box. This option is useful if you want to create a larger high-fidelity audio movie for local use and a smaller low-fidelity version for the Web. See Choosing publish settings for Flash movie format.

The sampling rate and degree of compression make a significant difference in the quality and size of sounds in exported movies. The more you compress a sound and the lower the sampling rate, the smaller the size and the lower the quality. You should experiment to find the optimal balance between sound quality and file size.

When working with imported MP3 files, you can choose to export the files in MP3 format using the same settings that the file had when imported.

Note: In Windows, you can also export all the sounds from a movie as a WAV file using File > Export Movie. See Exporting movies and images.

To set export properties for an individual sound:

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 choose Properties from the context menu.
| Select a sound in the Library panel and choose Properties from the options menu in the upper right corner of the panel.
| Select a sound in the Library panel and click the properties icon at the bottom of the Library panel.
2 | If the sound file has been edited externally, click Update.
3 | For Compression, choose Default, ADPCM, MP3, Raw, or Speech. To select options for the compression format you choose, see one of the following:
| The Default compression option
| Using the ADPCM compression option
| Using the MP3 compression option
| Using the Raw compression option
| Using the Speech compression option
4 | Set export settings.
5 | Click Test to play the sound once. Click Stop if you want to stop testing the sound before it has finished playing.
6 | Adjust export settings if necessary until the desired sound quality is achieved.
7 | Click OK.