为什么文字转语音不占用更多字符？

Question

我在这里使用 js 文本与 SpeechSynthesis 进行语音转换，它在有限的 words/sentences 下工作正常，但是当我添加我的所有博客段落时，超过 2-3k 个单词它不起作用，它转换到某个部分并自动停止。那么我如何添加无限制的字数或转换为语音的总页面内容。

注意：我也尝试了 js speak()，效果很好，但我想要一个 pause/stop 选项，所以我使用了它。所以如果还有其他的工作方式请建议。

const msg = new SpeechSynthesisUtterance();
let voices = [];
const voicesDropdown = document.querySelector('[name="voice"]');
const options = document.querySelectorAll('[type="range"],[name="text"]');
const speakButton = document.querySelector('#speak');
const stopButton = document.querySelector('#stop');

msg.text = document.querySelector('[name="text"]').value;

function populateVoices() {
  voices = this.getVoices();
  voicesDropdown.innerHTML = voices.map(voice => `<option value="${voice.name}">${voice.name}(${voice.lang})</option>`).join('');
}

function setVoice() {
  msg.voice = voices.find(voice => voice.name === this.value);
  toggle();
}

function toggle(startOver = true) { //true is for it will not stop if language changes
  speechSynthesis.cancel();
  if (startOver) {
    speechSynthesis.speak(msg);
  }
}

function setOption() {
  //                console.log(this.name, this.value);
  msg[this.name] = this.value;
  toggle();
}

speechSynthesis.addEventListener('voiceschanged', populateVoices);
voicesDropdown.addEventListener('change', setVoice);
options.forEach(option => option.addEventListener('change', setOption));
speakButton.addEventListener('click', toggle);

<div class="voiceinator">
  <select name="voice" id="voices">
    <option value="">Select a voice</option>
  </select>
  <label for="rate">Rate:</label>
  <input type="range" name="rate" min="0" max="3" value="1" step="0.1">

  <label for="pitch">Pitch:</label>
  <input type="range" name="pitch" min="0" max="2" value="1" step="0.1">

  <textarea name="text"></textarea>
  <button id="stop">Stop!</button>
  <button id="speak">Speak</button>

</div>

Answer 1

是known bug. The workaround每14秒发一份简历

您可以在行 speechSynthesis.speak(msg):

之后立即添加此内容

let r = setInterval(() => {
  console.log(speechSynthesis.speaking);
  if (!speechSynthesis.speaking) {
    clearInterval(r);
  } else {
    speechSynthesis.resume();
  }
}, 14000);

为什么文字转语音不占用更多字符？

Why js text to speech not taking more charachters?

javascript

text-to-speech