Cross-platform sound playback for Dart and Flutter with the goal of no additional system dependencies for users or devs to install. The only build- time requirement beyond Dart/Flutter is Rust, and eventually that will be obviated via precompiled binaries (TODO).
This is a melos monorepo:
| Package | What it is |
|---|---|
packages/sound_dart |
Pure Dart (no Flutter); works in CLI tools. Reaches native audio over dart:ffi, with a pluggable backend registry. |
packages/sound_flutter |
Flutter plugin. Builds the native library automatically (via cargokit) and re-exports the sound_dart API. |
native/sound_cli |
Rust crate (the C ABI behind the FFI backend). Decodes WAV/MP3/OGG/FLAC and plays with no system deps - dlopens libasound.so.2 on Linux, libaaudio.so on Android. |
import 'package:sound_dart/sound_dart.dart';
final playback = await Sound.playFile('chime.wav', volume: 0.8);
await playback.onComplete;Build the native library first: cargo build --manifest-path native/sound_cli/Cargo.toml.
| Host | Status |
|---|---|
| Android | Working |
| Android Emulator | Working |
| iOS | Working |
| iOS Simulator | Working |
| macOS | Working |
| Ubuntu 24.04 | Working |
| Web | Working |
| Windows 11 | Working |
Android Emulator tested on macOS, Ubuntu 24.04, and Windows 11. Web tested on macOS in Chrome and Safari, Ubuntu 24.04 in Chrome and Firefox, and Windows 11 in Chrome and Edge.
Driven by melos (config lives in the root
pubspec.yaml). After dart pub get (or flutter pub get):
dart run melos run native:build # build the Rust shared library
dart run melos run analyze # analyze sound_dart + sound_flutter
dart run melos run format # check Dart formatting (format:fix to apply)
dart run melos run test # Dart + Flutter tests
dart run melos run native:test # Rust crate tests