SpeechSynthesisEvent

这是 实验性技术
检查 浏览器兼容性表格 在生产中使用这之前。

SpeechSynthesisEvent interface of the Web 语音 API contains information about the current state of SpeechSynthesisUtterance objects that have been processed in the speech service.

特性

SpeechSynthesisEvent interface also inherits properties from its parent interface, Event .

SpeechSynthesisEvent.charIndex 只读
Returns the index position of the character in the SpeechSynthesisUtterance.text that was being spoken when the event was triggered.
SpeechSynthesisEvent.elapsedTime 只读
Returns the elapsed time in milliseconds after the SpeechSynthesisUtterance.text started being spoken that the event was triggered at.
SpeechSynthesisEvent.name 只读
Returns the name associated with certain types of events occuring as the SpeechSynthesisUtterance.text is being spoken: the name of the SSML marker reached in the case of a mark event, or the type of boundary reached in the case of a boundary 事件。
SpeechSynthesisEvent.utterance 只读
返回 SpeechSynthesisUtterance instance that the event was triggered on.

方法

SpeechSynthesisEvent interface also inherits methods from its parent interface, Event .

范例

utterThis.onpause = function(event) {
  var char = event.utterance.text.charAt(event.charIndex);
  console.log('Speech paused at character ' + event.charIndex + ' of "' +
  event.utterance.text + '", which is "' + char + '".');
}
utterThis.onboundary = function(event) {
  console.log(event.name + ' boundary reached after ' + event.elapsedTime + ' milliseconds.');
}
					

规范

规范 状态 Comment
Web 语音 API
The definition of 'SpeechSynthesisEvent' in that specification.
草案

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
SpeechSynthesisEvent
Chrome 33 Edge ≤18 Firefox 49 IE 不支持 No Opera 21 Safari 7 WebView Android 不支持 No Chrome Android 33 Firefox Android 62
62
61 — 62
Disabled
Disabled From version 61 until version 62 (exclusive): this feature is behind the media.webspeech.synth.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
Opera Android 不支持 No Safari iOS 7 Samsung Internet Android 3.0
charIndex
Chrome 33 Edge 14 Firefox 49 IE 不支持 No Opera 21 Safari 7 WebView Android 不支持 No Chrome Android 33 Firefox Android 62
62
61 — 62
Disabled
Disabled From version 61 until version 62 (exclusive): this feature is behind the media.webspeech.synth.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
Opera Android 不支持 No Safari iOS 7 Samsung Internet Android 3.0
elapsedTime
Chrome 33 Edge 14 Firefox 49 IE 不支持 No Opera 21 Safari 7 WebView Android 不支持 No Chrome Android 33 Firefox Android 62
62
61 — 62
Disabled
Disabled From version 61 until version 62 (exclusive): this feature is behind the media.webspeech.synth.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
Opera Android 不支持 No Safari iOS 7 Samsung Internet Android 3.0
name
Chrome 33 Edge 14 Firefox 49 IE 不支持 No Opera 21 Safari 7 WebView Android 不支持 No Chrome Android 33 Firefox Android 62
62
61 — 62
Disabled
Disabled From version 61 until version 62 (exclusive): this feature is behind the media.webspeech.synth.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
Opera Android 不支持 No Safari iOS 7 Samsung Internet Android 3.0
utterance
Chrome 33 Edge 14 Firefox 49 IE 不支持 No Opera 21 Safari 7 WebView Android 不支持 No Chrome Android 33 Firefox Android 62
62
61 — 62
Disabled
Disabled From version 61 until version 62 (exclusive): this feature is behind the media.webspeech.synth.enabled preference (needs to be set to true ). To change preferences in Firefox, visit about:config.
Opera Android 不支持 No Safari iOS 7 Samsung Internet Android 3.0

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。
用户必须明确启用此特征。
用户必须明确启用此特征。

另请参阅