speech_core

Provider-neutral speech recognition, synthesis, VAD, end-of-utterance, and diarization contracts.

Providers expose stable string IDs plus typed capability, model, voice, request, result, and failure objects. Provider SDK objects and untyped payload maps stay inside adapter packages.

import 'package:speech_core/speech_core.dart';

final registry = SpeechProviderRegistry();
registry.register(provider);

Streaming STT, VAD, and EOU sessions are audio sinks. TTS is an AudioSource, so synthesized PCM can branch to playback, recording, metering, or analysis.

Available adapters in this repository include FluidAudio, MLX Audio, Deepgram, and OpenAI TTS.