react-native-speech-audio-exporter

Export text-to-speech output to an audio file from React Native.

The first release supports iOS using AVSpeechSynthesizer.write(_:toBufferCallback:). Android is intentionally unsupported for now.

Install

npm install react-native-speech-audio-exporter
cd ios && pod install

Usage

import { exportSpeechToFile } from 'react-native-speech-audio-exporter';

const result = await exportSpeechToFile({
  text: 'Hello world',
  fileName: 'chapter-1',
  voiceId: 'com.apple.ttsbundle.Samantha-compact',
  rate: 0.5,
  pitch: 1.0,
  format: 'm4a',
  maxDurationSeconds: 60,
});

console.log(result.uri);

Supported iOS formats are caf, wav, aiff, and m4a. If maxDurationSeconds is provided, the exporter stops writing audio after that duration.

The package does not present a share sheet. Use React Native or app-specific UI to share or move the returned file.