Can I use
?

AAC audio file format

- OTHER

Advanced Audio Coding format, designed to be the successor format to MP3, with generally better sound quality.

Chrome

  1. 4 - 9: Not supported
  2. 10 - 11: Support unknown
  3. 12 - 116: Supported
  4. 117: Supported
  5. 118 - 120: Supported

Edge

  1. 12 - 116: Supported
  2. 117: Supported

Safari

  1. 3.1 - 3.2: Not supported
  2. 4 - 16.5: Supported
  3. 16.6: Supported
  4. 17.0 - TP: Supported

Firefox

  1. 2 - 21: Not supported
  2. 22 - 116: Partial support
  3. 117: Partial support
  4. 118 - 120: Partial support

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 101: Supported
  3. 102: Supported

IE

  1. 5.5 - 8: Not supported
  2. 9 - 10: Supported
  3. 11: Supported

Chrome for Android

  1. 117: Supported

Safari on iOS

  1. 3.2: Support unknown
  2. 4 - 16.6: Supported
  3. 17.0: Supported
  4. 17.1: Supported

Samsung Internet

  1. 4 - 21: Supported
  2. 22: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 73: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 2.3: Not supported
  2. 3 - 4.4.4: Supported
  3. 117: Supported

Firefox for Android

  1. 117: Partial support

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Partial support
  2. 3: Partial support

Support refers to this format's use in the audio element, not other conditions.

Resources:
Wikipedia article