adFilterNode BiquadFilterNodes] 的实例。通过 [page:Audio.setFilter] 或 [page:Audio.setFilters] 设置 filter。</p>

		<h3>[property:GainNode gain]</h3>
		<p>使用[link:https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/createGain AudioContext.createGain]()创建的[link:https://developer.mozilla.org/en-US/docs/Web/API/GainNode GainNode].</p>

		<h3>[property:Boolean hasPlaybackControl]</h3>
		<p>是否可以使用 [page:Audio.play play](),
			[page:Audio.pause pause]()等方法控制播�