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• 句法
• 规范
• 浏览器兼容性
• 相关话题

OscillatorNode() constructor of the Web 音频 API creates a new OscillatorNode object which is an AudioNode that represents a periodic waveform, like a sine wave, optionally setting the node's properties' values to match values in a specified object.

If the default values of the properties are acceptable, you can optionally use the AudioContext.createOscillator() factory method instead.

句法

var oscillatorNode = new OscillatorNode(context, options)
					

参数

Inherits parameters from the AudioNodeOptions dictionary .

context

A reference to an AudioContext .

选项 可选

An object whose properties specify the initial values for the oscillator node's properties. Any properties omitted from the object will take on the default value as documented.

type

The shape of the wave produced by the node. Valid values are ' sine ', ' square ', ' sawtooth ', ' triangle ' and ' custom '. The default is ' sine '.

detune

A detuning value (in cents) which will offset the frequency by the given amount. Its default is 0.

frequency

The frequency (in hertz ) of the periodic waveform. Its default is 440.

periodicWave

An arbitrary period waveform described by a PeriodicWave 对象。

返回值

新的 OscillatorNode 对象实例。

规范

规范	状态	注释
Web 音频 API The definition of 'OscillatorNode()' 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
OscillatorNode() 构造函数	Chrome 55	Edge ≤79	Firefox 53	IE 不支持 No	Opera 42	Safari ?	WebView Android 55 注意事项 55 注意事项 Before version 59, the default values were not supported.	Chrome Android 55 注意事项 55 注意事项 Before Chrome 59, the default values were not supported.	Firefox Android 53	Opera Android 42	Safari iOS ?	Samsung Internet Android 6.0 注意事项 6.0 注意事项 Before Samsung Internet 7.0, the default values were not supported.

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

见实现注意事项。

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

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

   1. OscillatorNode()
4. 特性

   1. detune
   2. frequency
   3. onended
   4. type
5. 方法

   1. setPeriodicWave()
   2. start()
   3. stop()
6. 继承：

   1. AudioNode
   2. EventTarget
7. 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. PannerNode
   33. PeriodicWave
   34. StereoPannerNode
   35. WaveShaperNode