Can I use
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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 - 155: Supported
  4. ✅ 156: Supported
  5. ✅ 157 - 159: Supported

Edge

  1. ✅ 12 - 154: Supported
  2. ✅ 155: Supported

Safari

  1. ❌ 3.1 - 3.2: Not supported
  2. ✅ 4 - 26.6: Supported
  3. ✅ 27: Supported
  4. ✅ 27.1 - TP: Supported

Firefox

  1. ❌ 2 - 21: Not supported
  2. ◐ 22 - 158: Partial support
  3. ◐ 159: Partial support
  4. ◐ 160 - 162: Partial support

Opera

  1. ❌ 9 - 12.1: Not supported
  2. ✅ 15 - 134: Supported
  3. ✅ 135: Supported

IE

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

Chrome for Android

  1. ✅ 156: Supported

Safari on iOS

  1. ﹖ 3.2: Support unknown
  2. ✅ 4 - 26.6: Supported
  3. ✅ 27.0: Supported
  4. ✅ 27.1 - 27.2: Supported

Samsung Internet

  1. ✅ 4 - 29: Supported
  2. ✅ 30: 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. ✅ 156: Supported

Firefox for Android

  1. ◐ 159: 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