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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

baseLatency 只读特性在 AudioContext interface returns a double that represents the number of seconds of processing latency incurred by the AudioContext passing an audio buffer from the AudioDestinationNode — i.e. the end of the audio graph — into the host system's audio subsystem ready for playing.

注意 : You can request a certain latency during construction time 采用 latencyHint option, but the browser may ignore the option.

句法

var baseLatency = audioCtx.baseLatency;
					

值

A double representing the base latency in seconds.

范例

// default latency ("interactive")
const audioCtx1 = new AudioContext();
console.log(audioCtx1.baseLatency); // 0.00
// higher latency ("playback")
const audioCtx2 = new AudioContext({ latencyHint: 'playback' });
console.log(audioCtx2.baseLatency); // 0.15
					

规范

规范	状态	注释
Web 音频 API The definition of 'baseLatency' 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
baseLatency	Chrome 58	Edge ≤79	Firefox 70	IE 不支持 No	Opera 45	Safari 不支持 No	WebView Android 58	Chrome Android 58	Firefox Android 不支持 No	Opera Android 43	Safari iOS 不支持 No	Samsung Internet Android 7.0

图例

完整支持

完整支持

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

另请参阅

• 使用 Web 音频 API
• Web 音频 API

元数据

• 最后修改： Oct 21, 2019

相关话题

1. Web 音频 API
2. AudioContext
3. 构造函数

   1. AudioContext()
4. 特性

   1. baseLatency
   2. outputLatency
5. 方法

   1. baseLatency
   2. close()
   3. createJavaScriptNode()
   4. createMediaElementSource()
   5. createMediaStreamDestination()
   6. createMediaStreamSource()
   7. createMediaStreamTrackSource()
   8. createWaveTable()
   9. getOutputTimestamp()
   10. outputLatency
   11. resume()
   12. suspend()
6. 继承：

   1. EventTarget
7. Related pages for Web Audio API

   1. AnalyserNode
   2. AudioBuffer
   3. AudioBufferSourceNode
   4. AudioContextOptions
   5. AudioDestinationNode
   6. AudioListener
   7. AudioNode
   8. AudioNodeOptions
   9. AudioParam
   10. AudioProcessingEvent
   11. AudioScheduledSourceNode
   12. AudioWorklet
   13. AudioWorkletGlobalScope
   14. AudioWorkletNode
   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