edge_tts 0.1.1

Use Microsoft Edge's free neural text-to-speech voices in Flutter. No API key required.

edge_tts

A Flutter/Dart package for using Microsoft Edge's free neural text-to-speech voices. No API key required. Works on Android and iOS.

Features

• 100+ high-quality neural voices across many languages
• Streaming MP3 audio via WebSocket
• Rate, pitch, and volume control
• Word and sentence boundary timing events
• SRT subtitle generation
• Automatic text chunking for long texts

Getting started

Add to your pubspec.yaml:

dependencies:
  edge_tts: ^0.1.0

Usage

List available voices

import 'package:edge_tts/edge_tts.dart';

final voices = await listVoices();
for (final voice in voices) {
  print('${voice.shortName} (${voice.gender}, ${voice.locale})');
}

Filter voices

final manager = await VoicesManager.create();
final hindiVoices = manager.find(locale: 'hi-IN', gender: 'Female');

Synthesize speech (streaming)

final tts = Communicate(
  text: 'Hello, world!',
  voice: 'en-US-EmmaMultilingualNeural',
  rate: '+0%',
  pitch: '+0Hz',
  volume: '+0%',
);

await for (final event in tts.stream()) {
  if (event is AudioDataEvent) {
    // event.data contains MP3 bytes
  }
}

Save to file

await tts.save('/path/to/output.mp3');

Get all audio bytes

final bytes = await tts.toBytes();

Generate subtitles

final tts = Communicate(
  text: 'Hello, world!',
  wordBoundary: true,
);

final sub = SubMaker();
await for (final event in tts.stream()) {
  sub.add(event);
}
print(sub.generateSrt());

Additional information

• GitHub Repository
• Based on the Python edge-tts package
• File issues on GitHub Issues