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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

AudioWorkletNode() 构造函数创建新 AudioWorkletNode object, which represents an AudioNode that uses a JavaScript function to perform custom audio processing.

句法

var node = new AudioWorkletNode(context, name);
var node = new AudioWorkletNode(context, name, options);
					

参数

context

BaseAudioContext instance this node will be associated with.

名称

A string, which represents the name of the AudioWorkletProcessor this node will be based on. A processor with the provided name must first be registered using the AudioWorkletGlobalScope.registerProcessor() 方法。

选项 可选

An object based on the AudioWorkletNodeOptions dictionary, which contains zero or more optional properties to configure the new node. The result of the structured clone algorithm applied to the object is also internally passed into the associated AudioWorkletProcessor() constructor — this allows custom initialization of an underlying user-defined AudioWorkletProcessor . Available properties are as follows:

numberOfInputs 可选

The value to initialize the numberOfInputs property to. Defaults to 1.

numberOfOutputs 可选

The value to initialize the numberOfOutputs property to. Defaults to 1.

outputChannelCount 可选

An array defining the number of channels for each output. For example, outputChannelCount: [n, m] specifies the number of channels in the first output to be n and the second output to be m . The array length must match numberOfOutputs .

parameterData 可选

An object containing the initial values of custom AudioParam objects on this node (in its 参数 property), with key being the name of a custom parameter and value being its initial value.

processorOptions 可选

Any additional data that can be used for custom initialization of the underlying AudioWorkletProcessor .

返回值

The newly constructed AudioWorkletNode 实例。

异常

NotSupportedError

指定 options.outputChannelCount is 0 or larger than the current implementation supports.

IndexSizeError

The length of options.outputChannelCount array does not match options.numberOfOutputs .

范例

For a complete example demonstrating user-defined audio processing, see the AudioWorkletNode 页面。

规范

规范	状态	注释
Web 音频 API The definition of 'AudioWorkletNode()' in that specification.	工作草案	初始定义。

浏览器兼容性

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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
AudioWorkletNode() 构造函数	Chrome 66	Edge 79	Firefox 76	IE 不支持 No	Opera ?	Safari 不支持 No	WebView Android 66	Chrome Android 66	Firefox Android 不支持 No	Opera Android ?	Safari iOS 不支持 No	Samsung Internet Android 9.0

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

另请参阅

• Web 音频 API
• Background audio processing using AudioWorklet
• AudioWorkletNode interface

元数据

• 最后修改： Apr 30, 2020

相关话题

1. Web 音频 API
2. AudioWorkletNode
3. 构造函数

   1. AudioWorkletNode()
4. 特性

   1. onprocessorerror
   2. 参数
   3. port
5. Related pages for Web Audio API

   1. AnalyserNode
   2. AudioBuffer
   3. AudioBufferSourceNode
   4. AudioContext
   5. AudioContextOptions
   6. AudioDestinationNode
   7. AudioListener
   8. AudioNode
   9. AudioNodeOptions
   10. AudioParam
   11. AudioProcessingEvent
   12. AudioScheduledSourceNode
   13. AudioWorklet
   14. AudioWorkletGlobalScope
   15. AudioWorkletProcessor
   16. BaseAudioContext
   17. BiquadFilterNode
   18. ChannelMergerNode
   19. ChannelSplitterNode
   20. ConstantSourceNode
   21. ConvolverNode
   22. DelayNode
   23. DynamicsCompressorNode
   24. GainNode
   25. IIRFilterNode
   26. MediaElementAudioSourceNode
   27. MediaStreamAudioDestinationNode
   28. MediaStreamAudioSourceNode
   29. OfflineAudioCompletionEvent
   30. OfflineAudioContext
   31. OscillatorNode
   32. PannerNode
   33. PeriodicWave
   34. StereoPannerNode
   35. WaveShaperNode