React Native TTS is a text-to-speech library for React Native on iOS and Android.
npm install --save react-native-tts
react-native link
import Tts from 'react-native-tts';
Add utterance to TTS queue and start speaking. Returns promise with utteranceId.
Tts.speak('Hello, world!');
Stop speaking and flush the TTS queue.
Tts.stop();
Returns list of available voices
(not supported on Android API Level < 21, returns empty list)
Tts.voices().then(voices => console.log(voices));
// Prints:
//
// [ { id: 'com.apple.ttsbundle.Moira-compact', name: 'Moira', language: 'en-IE' },
// ...
// { id: 'com.apple.ttsbundle.Samantha-compact', name: 'Samantha', language: 'en-US' } ]
Tts.setDefaultLanguage('en-IE');
Sets default voice, pass one of the voiceId as reported by a call to Tts.voices()
(not available on Android API Level < 21)
Tts.setDefaultVoice('com.apple.ttsbundle.Moira-compact');
Sets default speech rate. The rate parameter is a float where where 0.01 is a slowest rate and 0.99 is the fastest rate.
Tts.setDefaultRate(0.6);
There is a significant difference to how the rate value is interpreted by iOS and Android native TTS APIs. To provide unified cross-platform behaviour, translation is applied to the rate value. However, if you want to turn off the translation, you can provide optional skipTransform
parameter to Tts.setDefaultRate()
to pass rate value unmodified.
Do not translate rate parameter:
Tts.setDefaultRate(0.6, true);
Subscribe to TTS events
Tts.addEventListener('tts-start', (event) => console.log("start", event));
Tts.addEventListener('tts-finish', (event) => console.log("finish", event));
Tts.addEventListener('tts-cancel', (event) => console.log("cancel", event));
Copyright © 2016
Anton Krasovsky
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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