Sound Manager 3.2 Summary: The Sound Manager 3.2 software consists of - the Sound Manager system software extension - a new version of the Sound Control Panel Available since the introduction of the Macintosh II in 1987, the Sound Manager is Apple's digital audio software solution that allows any application to play and record sounds using the built-in sound hardware found on Macintosh computers. Sound Manager 3.0, released in 1993, added support for 16-bit CD-quality audio, redirection of sound to third-party hardware cards, and plug-in audio compression/ decompression software (codecs). Sound Manager 3.1 added two new audio codecs, significant performance increases on the Power Macintosh line of computers, and asynchronous alert sounds. It is completely backwards compatible with previous versions of the Sound Manager.