Audio Tracks

- LS

Method of specifying and selecting between multiple audio tracks. Useful for providing audio descriptions, director's commentary, additional languages, alternative takes, etc.

Chrome

  1. 4 - 44: Not supported
  2. 45 - 105: Disabled by default
  3. 106: Disabled by default
  4. 107 - 109: Disabled by default

Edge

  1. 12 - 18: Supported
  2. 79 - 104: Disabled by default
  3. 105: Disabled by default

Safari

  1. 3.1 - 6: Not supported
  2. 6.1 - 15.6: Supported
  3. 16.0: Supported
  4. 16.1 - TP: Supported

Firefox

  1. 2 - 32: Not supported
  2. 33 - 104: Disabled by default
  3. 105: Disabled by default
  4. 106 - 107: Disabled by default

Opera

  1. 9 - 31: Not supported
  2. 32 - 90: Disabled by default
  3. 91: Disabled by default

IE

  1. 5.5 - 9: Not supported
  2. 10: Supported
  3. 11: Supported

Chrome for Android

  1. 105: Disabled by default

Safari on iOS

  1. 3.2 - 6.1: Not supported
  2. 7 - 15.6: Supported
  3. 16.0: Supported
  4. 16.1: Supported

Samsung Internet

  1. 4 - 17.0: Not supported
  2. 18.0: Not supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 64: Not supported

UC Browser for Android

  1. 13.4: Disabled by default

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 105: Not supported

Firefox for Android

  1. 104: Not supported

QQ Browser

  1. 13.1: Disabled by default

Baidu Browser

  1. 13.18: Disabled by default

KaiOS Browser

  1. 2.5: Disabled by default
Resources:
MDN Web Docs - HTMLMediaElement.audioTracks