getspeech.js

    function getSpeech(cb) {
        if (!webkitSpeechRecognition) return false;
        var recognition = new webkitSpeechRecognition();
        recognition.interimResults = true;
        recognition.onresult = (event) => {
            var transcript = event.results[0][0].transcript;
            cb(transcript);
        }
        recognition.start();
    }