创建一个位置相关的音频对象.
使用了[link:https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API Web Audio API].
[example:webaudio_orientation webaudio / orientation]
[example:webaudio_sandbox webaudio / sandbox]
[example:webaudio_timing webaudio / timing]
// create an AudioListener and add it to the camera
var listener = new v3d.AudioListener();
camera.add(listener);
// create the PositionalAudio object (passing in the listener)
var sound = new v3d.PositionalAudio(listener);
// load a sound and set it as the PositionalAudio object's buffer
var audioLoader = new v3d.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 v3d.SphereGeometry(20, 32, 16);
var material = new v3d.MeshPhongMaterial({ color: 0xff2200 });
var mesh = new v3d.Mesh(sphere, material);
scene.add(mesh);
// finally add the sound to the mesh
mesh.add(sound);
listener — (必须) [page:AudioListener AudioListener] 实例.
[page:Audio Audio]类的继承属性.
位置相关音频的[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode PannerNode].
[page:Audio Audio]类的继承方法.
返回[page:PositionalAudio.panner panner].
返回[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/refDistance panner.refDistance]的值.
设置[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/refDistance panner.refDistance]的值.
返回[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/rolloffFactor panner.rolloffFactor]的值.
设置[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/rolloffFactor panner.rolloffFactor]的值.
返回[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/distanceModel panner.distanceModel]的值.
设置[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/distanceModel panner.distanceModel]的值.
返回[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/maxDistance panner.maxDistance]的值.
设置[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode/maxDistance panner.maxDistance]的值.
这个方法用来把环绕声音转换为定向声音[link:https://developer.mozilla.org/en-US/docs/Web/API/PannerNode directional sound].
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