AudioScheduledSourceNode - Web API 接口参考 编辑

AudioScheduledSourceNode 接口作为web音频API的一部分，是几种具有在特定时刻开始与停止能力的音频源节点接口的父接口。更具体地来说，这个接口定义了start() 和stop() 方法，以及onended事件

你不能直接创建AudioScheduledSourceNode。而是应该使用继承于它的子接口，如AudioBufferSourceNode, OscillatorNode和ConstantSourceNode.

除非另有说明，基于AudioScheduledSourceNode节点的输出在没有播放时处于静默状态（这种状态在start()之前与stop()之后调用）。静默状态总是由一个全0值流组成。

Properties

Inherits properties from its parent interface, AudioNode, and adds the following properties:

Event handlers

onended

A function to be called when the ended event is fired, indicating that the node has finished playing.

Methods

Inherits methods from its parent interface, AudioNode, and adds the following methods:

start()

Schedules the node to begin playing the constant sound at the specified time. If no time is specified, the node begins playing immediately.

stop()

Schedules the node to stop playing at the specified time. If no time is specified, the node stops playing at once.

Specification

Specification	Status	Comment
Web Audio API AudioScheduledSourceNode	Working Draft

Browser compatibility

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The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

See also

• Using the Web Audio API
• AudioNode