• 16BitAudioSupport flag tells if the Sound Manager supports 16-bit sampled sounds (compact disk quality).

• MultiChannels flag tells if the Sound Manager supports simultaneous channels.

• SndPlayDoubleBuffer flag tells if SndPlayDoubleBuffer function is available.

• LineLevelInput flag tells if sound input port requires line level.

• StereoInput flag tells if the sounds can be stereo recorded.

• 16BitSoundIO flag tells if sound hardware can play and record 16-bit samples.

• PlayAndRecord flag tells if built-in hardware can play and record simultaneously.

• HasSoundInputDevice flag tells if a sound input device is available.

• BuiltInSoundInput flag tells if built-in Sound Input hardware is present.

• SoundIOMgrPresent flag tells if sound capture routines are present.

• QuickTimeUsesNewSoundMgrCalls flag is used with Sound Manager version 3 for QuickTime (this flag was used before System 6.0.6).

• StereoMixing flag tells if the hardware can mix both channels of a stereo sound into one signal to be played on the internal speaker.

• StereoCapability flag tells if the Sound Manager has stereophonic capability.