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# AudioToolbox Constants

## Topics

### Constants

[`var kAudioUnitConfigurationInfo_AvailableArchitectures: String`](/documentation/AudioToolbox/kAudioUnitConfigurationInfo_AvailableArchitectures)

[`var kAudioUnitConfigurationInfo_MIDIProtocol: String`](/documentation/AudioToolbox/kAudioUnitConfigurationInfo_MIDIProtocol)

[`var kAudioUnitConfigurationInfo_MigrateFromPlugin: String`](/documentation/AudioToolbox/kAudioUnitConfigurationInfo_MigrateFromPlugin)


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