Configuring audio adapters

About the audio subsystem

The audio subsystem consists of:

Audio device drivers
Modern audio adapters (and sound controllers integrated on the motherboard) often comprise a set of independent devices. UnixWare 7 audio drivers support these devices:

Each of these devices requires its own I/O address and other configuration parameters. See also ``Audio device entries in the Resource Manager database''.

Play and record utilities
Computer audio subsystems must include software to control input and output sound characteristics such as volume levels, stereo separation, and sound sources. Sound-enabled applications often include such capabilities, which can communicate directly with the audio driver.

UnixWare 7 includes the scosound(X1) utility for playing and recording sounds. UnixWare 7 also includes these command-line utilities:

sets volume levels, and selects input and output devices

plays sound files

records sound files

An audio driver must be installed before these utilities can be used.

NOTE: Volume levels must be set manually with mixer before using scosound, or a command line must be available to run mixer in addition to running scosound.

UnixWare 7 audio adapters drivers are based on Open Sound System (OSS), a sound driver architecture for UNIX systems developed by 4Front Technologies. Because the audio subsystem conforms to the OSS API (Application Programming Interface), you can run OSS-compliant audio-enabled applications. For more information and examples of audio-enabled applications, see their web site:

NOTE: Skunkware® includes audio-enabled applications, as well as many other useful utilities. For more information, see the Skunkware web site:

However, the 4Front sound drivers included in Skunkware are not supported on UnixWare 7 systems; see ``Compatibility with earlier audio drivers''.

© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 22 April 2004