react-voice-to-text/dist/index.js

A small lib to use the speech recognition api in react

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isSpeechRecognitionSupported = isSpeechRecognitionSupported;
exports.useSpeechRecognition = useSpeechRecognition;
function isSpeechRecognitionSupported() {
    if (!('SpeechRecognition' in window) && !('webkitSpeechRecognition' in window)) {
        return false;
    }
    const SpeechRecognition = (window['SpeechRecognition'] || window['webkitSpeechRecognition']);
    if (!SpeechRecognition) {
        return false;
    }
    return true;
}
function useSpeechRecognition({ throwOnUnsupported, onStart = () => { }, onResult = () => { }, onEnd = () => { }, onStop = () => { }, onError = () => { }, lang = 'fr-FR', interimResults = false, maxAlternatives = 1 } = {}) {
    if (!('SpeechRecognition' in window) && !('webkitSpeechRecognition' in window)) {
        if (throwOnUnsupported) {
            throw new Error("Browser doesn't support the Web Speech API");
        }
        else {
            console.error("Browser doesn't support the Web Speech API");
            return;
        }
    }
    const SpeechRecognition = (window['SpeechRecognition'] || window['webkitSpeechRecognition']);
    if (!SpeechRecognition) {
        if (throwOnUnsupported) {
            throw new Error("Browser doesn't support the Web Speech API");
        }
        else {
            console.error("Browser doesn't support the Web Speech API");
            return;
        }
    }
    const recognition = new SpeechRecognition();
    recognition.lang = lang;
    recognition.interimResults = interimResults;
    recognition.maxAlternatives = maxAlternatives;
    const transcriptHistory = [];
    let lastText = '';
    recognition.addEventListener('start', () => {
        onStart();
    });
    recognition.addEventListener('result', (event) => {
        const transcript = event.results[0][0].transcript;
        lastText = transcript;
        transcriptHistory.push(transcript);
        onResult(event);
    });
    recognition.addEventListener('error', (event) => {
        onError(event);
    });
    recognition.addEventListener('end', () => {
        onEnd(lastText, transcriptHistory);
    });
    const startRecording = () => {
        recognition.start();
    };
    const stopRecording = () => {
        onStop();
        recognition.stop();
    };
    return {
        startRecording,
        stopRecording,
        recognition
    };
}