在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

onstart 特性为 SpeechRecognition interface represents an event handler that will run when the speech recognition service has begun listening to incoming audio with intent to recognize grammars associated with the current SpeechRecognition (when the start event fires.)

句法

mySpeechRecognition.onstart = function() { ... };
					

范例

recognition.onstart = function() {
  console.log('Speech recognition service has started');
}
					

规范

规范	状态	注释
Web 语音 API The definition of 'onstart' in that specification.	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
onstart	Chrome 33 Prefixed 注意事项 33 Prefixed 注意事项 Prefixed Implemented with the vendor prefix: webkit You'll need to serve your code through a web server for recognition to work.	Edge ≤79 Prefixed 注意事项 ≤79 Prefixed 注意事项 Prefixed Implemented with the vendor prefix: webkit You'll need to serve your code through a web server for recognition to work.	Firefox 不支持 No	IE 不支持 No	Opera 不支持 No	Safari 不支持 No	WebView Android Yes Prefixed 注意事项 Yes Prefixed 注意事项 Prefixed Implemented with the vendor prefix: webkit You'll need to serve your code through a web server for recognition to work.	Chrome Android Yes Prefixed 注意事项 Yes Prefixed 注意事项 Prefixed Implemented with the vendor prefix: webkit You'll need to serve your code through a web server for recognition to work.	Firefox Android 不支持 No	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android Yes Prefixed 注意事项 Yes Prefixed 注意事项 Prefixed Implemented with the vendor prefix: webkit You'll need to serve your code through a web server for recognition to work.

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。

见实现注意事项。

要求使用供应商前缀或不同名称。

要求使用供应商前缀或不同名称。

另请参阅

• Web 语音 API

元数据

• 最后修改： 2020 年 1 月 22 日

相关话题

1. SpeechRecognition
2. 构造函数

   1. SpeechRecognition()
3. 特性

   1. continuous
   2. grammars
   3. interimResults
   4. lang
   5. maxAlternatives
   6. onaudioend
   7. onaudiostart
   8. onend
   9. onerror
   10. onnomatch
   11. onresult
   12. onsoundend
   13. onsoundstart
   14. onspeechend
   15. onspeechstart
   16. onstart
   17. serviceURI
4. 方法

   1. abort()
   2. start()
   3. stop()
5. 事件

   1. audioend
   2. audiostart
   3. end
   4. error
   5. nomatch
   6. result
   7. soundend
   8. soundstart
   9. speechend
   10. speechstart
   11. start
6. 继承：

   1. EventTarget
7. Related pages for Web Speech API

   1. SpeechGrammar
   2. SpeechGrammarList
   3. SpeechRecognitionAlternative
   4. SpeechRecognitionError
   5. SpeechRecognitionEvent
   6. SpeechRecognitionResult
   7. SpeechRecognitionResultList
   8. SpeechSynthesis
   9. SpeechSynthesisErrorEvent
   10. SpeechSynthesisEvent
   11. SpeechSynthesisUtterance
   12. SpeechSynthesisVoice