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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <p id="unsupportMessage">ブラウザがサポートしていません。</p>
<button id="recognitionStart">音声認識開始</button>
<label><input type="checkbox" id="isContinue">連続認識</label>
<ul id="recognizedMessages" style="margin-top: 8px;">
              #unsupportMessage {
  color: red;
ul {
  list-style: none;
  margin: 0;
  padding: 0;
li {
  border-bottom: 1px solid #eeeeee;
  padding: 4px;
              // ブラウザが音声認識と音声読み上げに対応しているか確認
const unsupportMessage = $('#unsupportMessage')
if ('SpeechSynthesisUtterance' in window
    && 'webkitSpeechRecognition' in window) {
} else {

// 要素の取得
const recognitionStart = $('#recognitionStart')
const isContinue = $('#isContinue')
const recognizedMessages = $('#recognizedMessages')

// 音声認識の初期化と設定
const recognition = new webkitSpeechRecognition();
recognition.lang = 'ja-JP'
recognition.continuous = true

// 音声読み上げの初期化と設定
const utterance = new SpeechSynthesisUtterance();
const voices = speechSynthesis.getVoices();
utterance.voice = voices[7]; // 日本語
utterance.volume = 1.0; // 音量
utterance.rate = 1.0; // 速度
utterance.pitch = 2.0; // 音程
utterance.lang = 'ja-JP'; // 言語

let hasResult = false; // recognition.onresultが呼ばれたか

// 音声認識開始
recognitionStart.on('click', () => {
  console.log('recognitionStart clicked')
  recognitionStart.prop('disabled', true)

recognition.onsoundstart = () => {

recognition.onsoundend = () => {

// 音声認識結果取得時
recognition.onresult = (e) => {
  const msg = e.results[0][0].transcript;
  recognizedMessages.prepend('<li>' + msg + '</li>')
  utterance.text = msg
  speechSynthesis.speak(utterance); // 音声読み上げ開始
  recognition.stop(); // 音声認識終了
  hasResult = true;

recognition.onend = () => {
  if (!hasResult) {
    recognitionStart.prop('disabled', false)
  hasResult = false;

// 音声読み上げ終了時
utterance.onend = () => {
  recognitionStart.prop('disabled', false)
  if (isContinue.prop('checked')) {
    recognitionStart.prop('disabled', true)

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