在此页

• 特性
• 用法注意事项
• 范例
• 规范
• 浏览器兼容性
• 相关话题

AudioWorkletNodeOptions dictionary of the Web 音频 API is used to specify configuration options when constructing a new AudioWorkletNode object for custom audio processing. It is only used when calling the AudioWorkletNode() constructor. During internal instantiation of the underlying AudioWorkletProcessor ， the structured clone algorithm is applied to the options object and the result is passed into AudioWorkletProcessor 的构造函数。

特性

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 .

用法注意事项

When creating an AudioWorkletNode , these options can have various effects. If the number of inputs and number of outputs are both set to 0, a NotSupportedError will be thrown and the node construction process aborted. If the length of the outputChannelCount array doesn't match numberOfOutputs ， IndexSizeError will be thrown.

若 outputChannelCount isn't specified, and numberOfInputs and numberOfOutputs are both 1, the AudioWorkletNode 's initial channel count is set to 1. This has the effect of changing the output channel count to dynamically change to the computed number of channels, based on the input's channel count and the current setting of the AudioNode property channelCountMode .

否则，若 outputChannelCount is provided and if the values of numberOfInputs and numberOfOutputs are both 1, the audio worklet node's channel count is set to the value of outputChannelCount . Otherwise, the channel count of each channel in the set of output channels is set to match the corresponding value in the outputChannelCount 数组。

范例

// FILL IN EXAMPLE SNIPPET

规范

规范	状态	注释
Web 音频 API The definition of 'AudioWorkletNodeOptions' 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.

No compatibility data found. Please contribute data for "api.AudioWorkletNodeOptions" (depth: 1) to the MDN 兼容性数据存储库 .

元数据

• 最后修改： Apr 27, 2020

相关话题

1. Web 音频 API
2. AudioWorkletNodeOptions
3. 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. AudioWorkletNode
   16. AudioWorkletProcessor
   17. BaseAudioContext
   18. BiquadFilterNode
   19. ChannelMergerNode
   20. ChannelSplitterNode
   21. ConstantSourceNode
   22. ConvolverNode
   23. DelayNode
   24. DynamicsCompressorNode
   25. GainNode
   26. IIRFilterNode
   27. MediaElementAudioSourceNode
   28. MediaStreamAudioDestinationNode
   29. MediaStreamAudioSourceNode
   30. OfflineAudioCompletionEvent
   31. OfflineAudioContext
   32. OscillatorNode
   33. PannerNode
   34. PeriodicWave
   35. StereoPannerNode
   36. WaveShaperNode