# waveform-data.js

## v4.5.0 (2024/01/18)

 * (#119) Added support for 16-bit samples in `createFromAudio()` (@jameadows)

## v4.4.0 (2023/12/06)

 * (#84) Added `slice` method (@chrisn)

 * (#97) Fixed unhandled rejection when calling Web Audio `decodeAudioData`
   (@jdelStrother)

## v4.3.0 (2021/10/12)

 * Replaced inline-worker with rollup-plugin-web-worker-loader (@chrisn)

 * (#78) Fixed "Uncaught ReferenceError" when waveform-data.js is used
   in an Angular app (@chrisn)

## v4.2.1 (2021/10/09)

 * Added missing CommonJS module dist file (@chrisn)

## v4.2.0 (2021/10/09)

 * Updated to use ES module format. Replaced browserify with Rollup
   (@chrisn)

 * Fixed `WaveformData.toArrayBuffer()` for 16-bit waveform data (@chrisn)

 * To reduce memory usage, waveform data is now stored internally in binary
   format, and converted from JSON format if needed. `WaveformData.resample()`
   now produces binary format data (@chrisn)

 * Removed the undocumented partial resampling feature (@chrisn)

 * Removed the `WaveformDataArrayBufferAdapter` and `WaveformDataObjectAdapter`
   classes (@chrisn)

 * Moved source files from lib to src folder (@chrisn)

## v4.1.1 (2021/08/01)

 * Fixed handling of 16-bit binary waveform data (@chrisn)

## v4.1.0 (2021/04/29)

 * Added `WaveformData.toArrayBuffer()` method (@chrisn)

 * Fixed TypeScript declarations (@wong2)

## v4.0.0 (2021/04/24)

 * Added disable_worker option to `WaveformData.createFromAudio()`
   (@Christilut, @chrisn)

 * Added `WaveformData.toJSON()` method (@chrisn)

 * Updated TypeScript declarations (@Kangaroux, @chrisn)

 * Added d3.js example, see demo/d3.html (@chrisn)

 * Reworded error messages (@chrisn)

 * The `WaveformData.resample()` method no longer accepts a single number
   (@chrisn)

## v3.3.4 (2020/09/07)

 * Improve browser compatibility (@Dantist)

## v3.3.3 (2020/08/28)

 * Clean up Worker and AudioBuffer objects to avoid leaks (@jdelStrother)

 * Added error handling to demo page, also add missing waveform data file
   (@chrisn)

 * Fixed demo page in Safari (@jdelStrother)

## v3.3.2 (2020/05/08)

 * Fixed TypeScript declarations (@chrisn)

## v3.3.1 (2020/02/23)

 * Version bump after fixing Travis CI config (@chrisn)

## v3.3.0 (2020/02/23)

 * Removed unnecessary files to reduce size of NPM package (@chrisn)

## v3.2.0 (2020/02/22)

 * (#66) Added TypeScript declarations (@artemkosenko)

 * Improved documentation (@chrisn)

## v3.1.0 (2019/10/23)

 * Added concat() method (@jdelStrother)

## v3.0.0 (2019/08/23)

 * Added support for multi-channel waveforms (@chrisn)

 * Added `fromAudioBuffer()` method to create waveform from AudioBuffer
   (@davidturissini)

 * This release has some breaking API changes, refer to doc/migration-guide.md
   for details of how to update your code

## v2.1.2 (2018/11/10)

 * Version bump after updating npm access token (@chrisn)

## v2.1.0 (2018/11/10)

 * Move Web Audio based waveform generation to a Web Worker (@semiaddict)

 * Fix audio decode error handling in Safari (@chrisn)

## v2.0.2 (2016/06/07)

 * Allow offset length to be zero (@chrisn)

 * Improved documentation and code examples (@gr2m, @mdesenfants, @chrisn)

## v2.0.1 (2016/03/14)

 * (#42) Fixed multi-channel audio handling in Web Audio builder (@chrisn)

 * Fixed off-by-one error in waveform data generation (@chrisn)

 * Replaced auto-generated ChangeLog (@chrisn)

 * Apply jshint to test code (@chrisn)

## v2.0.0 (2016/12/10)

 * Auto-generate CHANGELOG.md on version bump (@oncletom)

 * (#40) Drop bower support, remove compiled files from git and include them in
   npm package (#40) (@oncletom)

 * (#39) Replace blanket by nyc for code coverage reporting (@oncletom)

 * Use ES2015 syntax for README examples (@oncletom)

 * (#38) Extracted Web Audio builder from the main package (@oncletom)

 * (#37) Callers must now pass in an AudioContext object (@dodds-cc)

## v1.5.3 (2016/09/21)

 * (#36) Moved the project from github.com/bbcrd to github.com/bbc (@oncletom)

 * Added missing npm dependencies (@oncletom)

 * Deploy to npm from Travis CI (@oncletom)

 * Use working blanket module version (@chrisn)

## v1.5.2 (2016/08/05)

 * Allow zero as a valid segment name (@chrisn)

## v1.5.1 (2015/03/14)

 * (#29) Don't let min/max go outside int8 range (@a1k0n)

## v1.5.0 (2015/03/11)

 * (#28) Changed the Web Audio decoder to pass the decoded AudioBuffer (@a1k0n)

## v1.4.4 (2014/10/09)

 * Fixed an include issue (@oncletom)

## v1.4.3 (2014/10/09)

 * Extracted getAudioDecoder function into a separate module (@oncletom)

 * Added tests for Web Audio builder (@oncletom)

 * Allow the user to specify the scale factor in the Web Audio builder, and
   changed the default from 512 to 128 (@chainlink)

## v1.4.2 (2014/09/25)

 * (#25) Added audio-context module to provide access to a singleton
   AudioContext (@oncletom)

## v1.4.1 (2014/09/10)

 * Improved error messages (@oncletom)

## v1.4.0 (2014/06/25)

 * (#6) Generate partial resampled data (@oncletom)

## v1.2.0 (2014/06/03)

 * (#19) Added Points interface (@chainlink)

## v1.1.3 (2014/04/24)

 * (#16) Replaced dense array with normal array in offsetValues method
   (@jonkoops)

## v1.1.2 (2014/01/30)

 * (#9) Fixed XMLHttpRequest handling in WaveformData.create with IE9
   (@oncletom)

## v1.1.1 (2013/10/30)

 * (#3) Added code coverage reporting with mocha-blanket (@oncletom)

## v1.1.0 (2013/10/14)

 * First release (@oncletom)