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Web Audio API

- REC

High-level JavaScript API for processing and synthesizing audio

Chrome

  1. ❌ 4 - 13: Not supported
  2. ✅ 14 - 33: Supported
  3. ✅ 34 - 135: Supported
  4. ✅ 136: Supported
  5. ✅ 137 - 139: Supported

Edge

  1. ✅ 12 - 135: Supported
  2. ✅ 136: Supported

Safari

  1. ❌ 3.1 - 5.1: Not supported
  2. ✅ 6 - 14: Supported
  3. ✅ 14.1 - 18.4: Supported
  4. ✅ 18.5: Supported
  5. ✅ TP: Supported

Firefox

  1. ❌ 2 - 24: Not supported
  2. ✅ 25 - 137: Supported
  3. ✅ 138: Supported
  4. ✅ 139 - 141: Supported

Opera

  1. ❌ 9 - 12.1: Not supported
  2. ✅ 15 - 21: Supported
  3. ✅ 22 - 116: Supported
  4. ✅ 117: Supported

IE

  1. ❌ 5.5 - 10: Not supported
  2. ❌ 11: Not supported

Chrome for Android

  1. ✅ 136: Supported

Safari on iOS

  1. ❌ 3.2 - 5.1: Not supported
  2. ✅ 6 - 14.4: Supported
  3. ✅ 14.5 - 18.4: Supported
  4. ✅ 18.5: Supported

Samsung Internet

  1. ✅ 4 - 26: Supported
  2. ✅ 27: 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 - 4.4.4: Not supported
  2. ✅ 136: Supported

Firefox for Android

  1. ✅ 137: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ✅ 2.5: Supported
  2. ✅ 3: Supported

Not all browsers with support for the Audio API also support media streams (e.g. microphone input). See the getUserMedia/Streams API data for support for that feature.

Firefox versions < 25 support an alternative, deprecated audio API.

Chrome support went through some changes as of version 36.

Resources:
MDN Web Docs - Web Audio API
Polyfill to support Web Audio API in Firefox
Polyfill to enable Web Audio API through Firefox Audio Data api or flash
WebPlatform Docs