在此页

• 句法
• 规范
• 浏览器兼容性
• 相关话题

只读 voiceActivityFlag 特性为 RTCRtpSynchronizationSource interface indicates whether or not the most recent RTP packet on the source includes voice activity. This is only present if the stream is using the voice activity detection feature; see the RTCOfferOptions flag voiceActivityDetection .

句法

var voiceActivity = RTCRtpSynchronizationSource.voiceActivityFlag
					

值

A Boolean value which is true if voice activity is present in the most recently received RTP packet played by the associated source, or false if voice activity is not present.

This property is omitted entirely if voice activity detection is not enabled on the source, or if the RFC 6464 extension header isn't present.

规范

规范	状态	注释
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'voiceActivityFlag' in that specification.	候选推荐	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
voiceActivityFlag	Chrome 不支持 No	Edge 不支持 No	Firefox 59	IE 不支持 No	Opera 不支持 No	Safari ?	WebView Android 不支持 No	Chrome Android 不支持 No	Firefox Android 59	Opera Android 不支持 No	Safari iOS ?	Samsung Internet Android 不支持 No

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

用户必须明确启用此特征。

用户必须明确启用此特征。

元数据

• 最后修改： Mar 18, 2019

相关话题

1. RTCRtpSynchronizationSource
2. 特性

   1. voiceActivityFlag