voice_guidance

Engine-agnostic voice guidance foundation for turn announcements and safety warnings in driver-assisting navigation flows.

voice_guidance provides a small abstraction over text-to-speech (TTS) so the navigation domain can remain independent from platform TTS APIs.

Features

TtsEngine interface for pluggable speech engines.
FlutterTtsEngine implementation using flutter_tts.
NoOpTtsEngine for tests and non-audio environments.
VoiceGuidanceConfig for runtime voice settings.

Install

dependencies:
  voice_guidance: ^0.1.0

Quick Start

import 'package:voice_guidance/voice_guidance.dart';

final tts = FlutterTtsEngine();
await tts.setLanguage('ja-JP');
await tts.setVolume(1.0);
await tts.speak('300 meters ahead, turn right.');

API Overview

API	Purpose
`TtsEngine`	Abstract speech interface
`FlutterTtsEngine`	Real platform speech implementation
`NoOpTtsEngine`	Silent fallback for CI/tests
`VoiceGuidanceConfig`	Runtime voice behavior configuration

License

BSD-3-Clause - see LICENSE.