javascript
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three.js
镜像自地址 https://github.com/tazdij/three.js.git


			
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		[page:Object3D] &rarr; [page:Audio] &rarr;

		<h1>[name]</h1>

		<p class="desc">
			Create a positional audio object.<br /><br />

			This uses the [link:https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API Web Audio API].
		</p>


		<h2>Example</h2>

		<p>
			[example:webaudio_sandbox webaudio / sandbox ]</br>
			[example:webaudio_timing webaudio / timing ]
		</p>

		<code>
		// create an AudioListener and add it to the camera
		var listener = new THREE.AudioListener();
		camera.add( listener );

		// create the PositionalAudio object (passing in the listener)
		var sound = new THREE.PositionalAudio( listener );

		// load a sound and set it as the PositionalAudio object's buffer
		var audioLoader = new THREE.AudioLoader();
		audioLoader.load( 'sounds/song.ogg', function( buffer ) {
			sound.setBuffer( buffer );
			sound.setRefDistance( 20 );
			sound.play();
		});

		// create an object for the sound to play from
		var sphere = new THREE.SphereGeometry( 20, 32, 16 );
		var material = new THREE.MeshPhongMaterial( { color: 0xff2200 } );
		var mesh = new THREE.Mesh( sphere, material );
		scene.add( mesh );

		// finally add the sound to the mesh
		mesh.add( sound );
		</code>


		<h2>Constructor</h2>

		<h3>[name]( [param:AudioListener listener] )</h3>
		<p>
		listener — (required) [page:AudioListener AudioListener] instance.
		</p>


		<h2>Properties</h2>

		<p>
			See the [page:Audio Audio] class for inherited properties.
		</p>

		<h3>[property:PannerNode panner]</h3>
		<p>The PositionalAudio's [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode PannerNode].</p>


		<h2>Methods</h2>

		<p>
			See the [page:Audio Audio] class for inherited methods.
		</p>

		<h3>[method:PannerNode getOutput]()</h3>
		<p>
		Returns the [page:PositionalAudio.panner panner].
		</p>

		<h3>[method:Number getRefDistance]()</h3>
		<p>
		Returns the value of [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/refDistance panner.refDistance].
		</p>

		<h3>[method:PannerNode setRefDistance]( [param:Number value] )</h3>
		<p>
		Sets the value of [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/refDistance panner.refDistance].
		</p>

		<h3>[method:PannerNode getRolloffFactor]()</h3>
		<p>
		Returns the value of [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/rolloffFactor panner.rolloffFactor].
		</p>

		<h3>[method:PannerNode setRolloffFactor]( [param:Number value] )</h3>
		<p>
		Sets the value of [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/rolloffFactor panner.rolloffFactor].
		</p>

		<h3>[method:String getDistanceModel]()</h3>
		<p>
		Returns the value of [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/distanceModel panner.distanceModel].
		</p>

		<h3>[method:String setDistanceModel]( [param:String value] )</h3>
		<p>
		Sets the value of [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/distanceModel panner.distanceModel].
		</p>

		<h3>[method:PannerNode getMaxDistance]()</h3>
		<p>
		Returns the value of [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/maxDistance panner.maxDistance].
		</p>

		<h3>[method:PannerNode setMaxDistance]( [param:Number value] )</h3>
		<p>
		Sets the value of [link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/maxDistance panner.maxDistance].
		</p>

		<h2>Source</h2>

		[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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