Sounds is a fork of the Flutter Sound project.

Sounds is almost a complete rewrite of the dart code from Flutter Sound. The aim of the rewrite has been resolve a number of issues apparent in Flutter Sound:

  • jank during playback.
  • crashes due to threading issues.
  • redesign the api so it is clean and consistent.
  • design an api that will accomodate future expansion of the core feature set.
  • provide additional features.
  • Hide internal apis from the public api.
  • Provide a consistent error handling mechanisim via exceptions.
  • Remove duplicated code.
  • Bring the code in line with Google's recommended best practices.

pub version


The Sounds package is a Flutter package that provides audio recording and playback functionality for both the android and ios platforms.

Sounds provides both a high level api and widgets for recording and playback.

The api is designed so you can use the supplied widgets or roll your own.

The Sounds package supports playback from:

  • Assets
  • Files
  • URL
  • Native Streams (with sync).


The Sounds package includes the following features

  • Play audio without any UI
  • Play audio using the built in SoundPlayerUI Widget.
  • Play audio using the OSs' Media Player
  • Roll your own UI utilising the Sounds api.
  • Record audio without any UI
  • Record audio using the builtin SoundRecorderUI Widget.
  • Roll your own Recording UI utilising the Sounds api.
  • Support for releasing/resuming resources when the app pauses/resumes.

The core classes are:

SoundPlayerUIA Flutter Widget Audio Player
SoundRecorderUIA Flutter Widget for recording
QuickPlayPlays an audio file without a UI.
SoudPlayer.noUIAPI to playback audio with fine grained control
SoundPlayer.withShadeUIAPI to playback audio using the OS's Shade (media player)
SoundRecorderAPI to record audio with fine grained control.
TrackContainer for audio used by all of the above classes.
MediaFormatDefines what MediaFormat is being used.
RecorderPlaybackControllerFlutter InheritedWidget used to co-ordinate Recording and Playback in a single UI.
AlbumsPlay a sequence of Tracks via the OS's Shade (media player)



Wiki High level guide to using Sounds.

API Reference


See the Roadmap for details on the future of Sounds.


See the Contributing guide for details on contributing to Sounds.

The key classes are:

Api classes

QuickPlay - instantly play an audio file (no ui). Perfect for the odd beep.

Track - Defines a track including the artist details and the audio media.

Album - play a collection of tracks via the OSs' audio UI.

SoundPlayer - provides an api for playing audio including pause/resume/seek.

SoundRecorder - api for recording audio.


SoundPlayerUI - displays an HTML 5 style audio controller widget.

SoundRecorderUI - displays a recording widget.

RecorderPlaybackController - pairs a SoundPlayerUI and SoundRecorderUI to provide a co-ordinated recording/playback UI.

Note: there are some limitations on the supported MediaFormat. See the MediaFormat section below.


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