AudioTrack.language

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范例
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只读 AudioTrack property 语言 returns a string identifying the language used in the audio track. For tracks that include multiple languages (such as a movie in English in which a few lines are spoken in other languages), this should be the video's primary language.

句法

var audioTrackLanguage = AudioTrack.language;

值

A DOMString specifying the BCP 47 ( RFC 5646 ) format language tag of the primary language used in the audio track, or an empty string ( "" ) if the language is not specified or known, or if the track doesn't contain speech.

For example, if the primary language used in the track is United States English, this value would be "en-US" . For Brazilian Portuguese, the value would be "pt-BR" .

范例

This example locates all of a media element's primary language and translated audio tracks and returns a list of objects containing each of those tracks' id , kind ，和 语言 .

This could then be used to build a user interface for selecting the language the user would like to listen to while watching a movie, for example.

function getAvailableLanguages(el) {
  var trackList = [];
  const wantedKinds = [
    "main", "translation"
  ];
  el.audioTracks.forEach(function(track) {
    if (wantedKinds.includes(track.kind)) {
      trackList.push({
        id: track.id,
        kind: track.kind,
        language: track.language
      });
    }
  });
  return trackList;
}

规范

规范	状态	注释
HTML 实时标准 The definition of 'AudioTrack.language' in that specification.	实时标准
HTML5 The definition of 'AudioTrack.language' in that specification.	推荐

浏览器兼容性

The compatibility table in 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
`语言`	Chrome 45 Disabled 45 Disabled Disabled From version 45: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled` ). To change preferences in Chrome, visit chrome://flags.	Edge 79 Disabled 79 Disabled Disabled From version 79: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled` ). 12 — 79	Firefox 33	IE 10	Opera 32 Disabled 32 Disabled Disabled From version 32: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled` ).	Safari 6.1	WebView Android 45	Chrome Android 45 Disabled 45 Disabled Disabled From version 45: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled` ). To change preferences in Chrome, visit chrome://flags.	Firefox Android 33	Opera Android 32 Disabled 32 Disabled Disabled From version 32: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled` ).	Safari iOS 7	Samsung Internet Android 不支持 No

图例

完整支持
不支持
用户必须明确启用此特征。

元数据

最后修改： May 25, 2019

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