�型对象作为音源。<br />
		并且设置[page:Audio.hasPlaybackControl hasPlaybackControl]为false。
		</p>

		<h3>[method:this setNodeSource]( audioNode )</h3>
		<p>
		设置[page:Audio.source source]给audioBuffer, 和设置[page:Audio.sourceType sourceType]给 'audioNode'.<br />
		并且设置[page:Audio.hasPlaybackControl hasPlaybackControl]为false.

		</p>

		<h3>[method:this setPlaybackRate]( [param:Float value] )</h3>
		<p>
		如果[page:Audio.hasPlaybackControl hasPlaybackControl]是true, �