User Guide

APPENDIX E
273
Notes on Sound Forge XP’s sound file compression support:
• The Open dialog (File menu) allows you to preview compressed WAV files if
you have an appropriate ACM driver installed. However, you must have your
Playback device set to the Sound Mapper for this to work (Preferences/Wave in the
Options menu).
• When saving uncompressed audio data to a compressed format with the
Save As dialog (File menu), it is a good idea to close the file and re-open it
after saving. Since Sound Forge XP does the compression and
decompression during saving and loading you will not be able to hear what
the file sounds like with compression until after you’ve saved and reloaded
the file.
SETTING UP THE AUDIO COMPRESSION MANAGER
The Microsoft Audio Compression Manager is part of Windows 9x and NT. If
you are running Windows 3.x, Sound Forge XP will install Video for Windows in
your computer, which also installs the ACM.
In Windows 9x, to view the installed audio compression and decompression
drivers, go to Control Panel/Multimedia/Advanced/Audio Compression Codecs. Double-
clicking on any of the codecs allows you to enable or disable each one.