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 - 130: Supported
  4. ✅ 131: Supported
  5. ✅ 132 - 134: Supported

Edge

  1. ✅ 12 - 130: Supported
  2. ✅ 131: Supported

Safari

  1. ❌ 3.1 - 3.2: Not supported
  2. ✅ 4 - 18.0: Supported
  3. ✅ 18.1: Supported
  4. ✅ 18.2 - TP: Supported

Firefox

  1. ❌ 2 - 21: Not supported
  2. ◐ 22 - 131: Partial support
  3. ◐ 132: Partial support
  4. ◐ 133 - 135: Partial support

Opera

  1. ❌ 9 - 12.1: Not supported
  2. ✅ 15 - 113: Supported
  3. ✅ 114: Supported

IE

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

Chrome for Android

  1. ✅ 131: Supported

Safari on iOS

  1. ﹖ 3.2: Support unknown
  2. ✅ 4 - 18.0: Supported
  3. ✅ 18.1: Supported
  4. ✅ 18.2: Supported

Samsung Internet

  1. ✅ 4 - 25: Supported
  2. ✅ 26: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 12.1: Not supported
  2. ✅ 80: 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. ✅ 131: Supported

Firefox for Android

  1. ◐ 132: Partial support

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: 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