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webkitspeechrecognition - webkitSpeechRecognition 在 start() 之后立即调用 onend

问题描述

一旦我调用rec.start()，它就会立即调用onstart，然后立即调用onend，永远不会进入onresult。

网页允许使用麦克风，由于是 https Using Chrome 81.0.4044.122 on osx，它被询问过一次，它被列为支持语音识别。

我知道这在浏览器中不是一个稳定的功能，但运行 annyang 演示工作，检测我的声音，我相信这是使用相同的语音识别工具包。 https://www.talater.com/annyang/

有任何想法吗？

这是我的代码

if (!window.webkitSpeechRecognition) {
  // not called, so assume browser supports webkitSpeechRecognition
  alert('Your browser doesn\'t support speech to text.\nTry Chrome 33+ :)');
} else {
  const promise = new Promise((resolve, reject) => {
    const recognition = new webkitSpeechRecognition();
    recognition.lang = lang;
    recognition.continuous = true; // tried true and false

    recognition.onstart = (e) => {
      // called immediately after .start() as expected
      console.log("onstart");
    }
    recognition.onend = () => {
      // called immediately after onstart, not as expected
      console.log("onend");
    }
    recognition.onresult = function(event) {
      // never called, because it ended as soon as it started
      console.log("onresult");
    };
    // also tried the following formats
    // recognition.onresult = (event) => {};
    // recognition.addEventListener('onresult', (event) => {};
    // original example written like the following
    // recognition.addEventListener('result', (event) => {};

    recognition.start();
  });
  return await promise;
}

标签： webkitspeechrecognition

解决方案

对不起各位，是浏览器的问题。

Chrome 说它已经更新了，但它实际上仍然需要重新启动，只有在进入 Chrome 偏好设置后才能看到。

我现在在台式机和 Android 平板电脑上都有 83.0.4103.83，它似乎工作正常。

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