audio_core

Provider-neutral PCM types and asynchronous source/sink session contracts for Dart and Flutter audio applications.

AudioFrame owns interleaved float32 PCM and carries format, source, track, clock, sequence, sample-offset, timestamp, and discontinuity metadata. AudioSource and AudioSink use two-phase prepare/start lifecycles so consumers can attach every listener before the first frame is emitted.

import 'package:audio_core/audio_core.dart';

final format = AudioFormat(sampleRate: 16000, channels: 1);

This package has no Flutter or provider SDK dependency. Use audio_kit_graph for bounded fan-out and audio_processing for PCM transforms.

See the Audio Kit repository for architecture and lifecycle documentation.