Specifies the current properties or desired properties to be set for the audio system.
See AudioSettings.Reset for an example.
| dspBufferSize | The length of the DSP buffer in samples determining the latency of sounds by the audio output device. | 
| numRealVoices | The current maximum number of simultaneously audible sounds in the game. | 
| numVirtualVoices | The maximum number of managed sounds in the game. Beyond this limit sounds will simply stop playing. | 
| sampleRate | The current sample rate of the audio output device used. | 
| speakerMode | The current speaker mode used by the audio output device. |