webkitSpeechRecognition自动停止

Question

我正在使用webkitSpeechRecognition。但当识别开始时，它会在1-2分钟不活动后停止。我正试着在它结束后再把它烧回去。当我执行start_transcript(语言)时，它一直在产生一千个console.log(“语音识别终止”)；并且它不再识别。

var final_transcript = '';
var recognizing = false;
var start_timestamp;
if (!('webkitSpeechRecognition' in window)) {
  upgrade();
} else {
  var recognition = new webkitSpeechRecognition();
  recognition.continuous = true;
  recognition.interimResults = true;
  recognition.onstart = function() {
    recognizing = true;
  };

  recognition.onend = function() {
    console.log("voice recognition terminated");
    recognition.start();
  };

function start_transcript(language) {
  if (recognizing) {
    recognition.stop();
    return;
  }
  final_transcript = '';
  var rec_lang = 'fr-FR';
    recognition.lang = rec_lang;
  recognition.start();
}

任何帮助和建议都将非常感谢。

谢谢

Answer 1

只是一些小小的遗漏。更新了您的代码，填补了那些缺失的空白，请在您的控制台中尝试此操作。另外，别忘了调用start_transcript。

​

var final_transcript = '';
var recognizing = false;
var start_timestamp;
if (!('webkitSpeechRecognition' in window)) {
  upgrade();
} else {
  var recognition = new webkitSpeechRecognition();
  recognition.continuous = true;
  recognition.interimResults = true;
  recognition.onstart = function() {
    recognizing = true;
  };

  // need to have result as well 
  recognition.onresult = function(e) {
    console.log(e.results);

    // Extracting the words from the result and printing in the console 
    var transcript = [...e.results]
      .map(result => result[0])
      .map(result => result.transcript)
      .join('');
    console.log(transcript);
  };

  recognition.onend = function() {
    console.log("voice recognition terminated");
    recognition.start();
  };
} // I guess you forgot closing the else block as well

function start_transcript() {
  if (recognizing) {
    recognition.stop();
    return;
  }
  final_transcript = '';
  var rec_lang = 'fr-FR';
  recognition.lang = rec_lang;
  recognition.start();
}

​

PS:我也做了一个类似的项目，参考了卫斯博斯的javascript30，并将其与webpack混合在一起。如果你想参考它，请访问https://github.com/Mondal10/personal-voice-assistant