This command returns a list of AudioDevice objects containing information about each active audio device on the machine.

The AudioDevice object has the following attributes:

Attribute	Description
id	The 1-based ID number of the device.
name	The name provided by the device.
primary	A True/False value indicating whether this is the primary (default) audio device.
channel_count	The number of channels output by the device.
channel_mask	The mask of channels output by the device.

The AudioDevice object can be used with the <viz>.addSoundMixer, <viz>.addAudio, or <viz>.addVideo commands to specify which device to output audio to.

The AudioDevice object can also be used with the <viz>.setDefaultAudioDevice command to set the default audio playback device for all subsequent audio related commands.