Stops the audio processing thread.
This method has no parameters.
This method does not return a value.
When StopEngine is called, all output is stopped immediately. However, the audio graph is left untouched, preserving effect parameters, effect histories (for example, the data stored by a reverb effect in order to emit echoes of a previous sound), voice states, pending source buffers, cursor positions, and so forth. When the engine is restarted, the resulting audio output will be identical—apart from a period of silence—to the output that would have been produced if the engine had never been stopped.
Windows 8, Windows Phone 8 (XAudio 2.8); DirectX SDK (XAudio 2.7)