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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

maxValue 只读特性在 AudioParam interface represents the maximum possible value for the parameter's nominal (effective) range.

句法

var maxVal = audioParam.maxValue;
					

值

A floating-point Number indicating the maximum value permitted for the parameter's nominal range.

默认值 maxValue is the maximum positive single-precision floating-point value (+340,282,346,638,528,859,811,704,183,484,516,925,440).

范例

const audioCtx = new AudioContext();
const gainNode = audioCtx.createGain();
console.log(gainNode.gain.maxValue); // 3.4028234663852886e38
					

规范

规范	状态	注释
Web 音频 API The definition of 'maxValue' in that specification.	工作草案

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
maxValue	Chrome 52	Edge ≤18	Firefox 53	IE No	Opera 39	Safari 6	WebView Android 52	Chrome Android 52	Firefox Android 53	Opera Android 41	Safari iOS Yes	Samsung Internet Android 6.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• AudioParam.minValue

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. Web 音频 API
2. AudioParam
3. 特性

   1. defaultValue
   2. maxValue
   3. minValue
   4. value
4. 方法

   1. cancelAndHoldAtTime()
   2. cancelScheduledValues()
   3. exponentialRampToValueAtTime()
   4. linearRampToValueAtTime()
   5. setTargetAtTime()
   6. setValueAtTime()
   7. setValueCurveAtTime()
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. 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