我在Chrome中实现的Web Speech API SpeechRecognition（）在我说英语时工作得很好，但在其他语言中它经常返回英语单词。我是否错误地实现了this.recognition.lang？documentation仅给出了一个基本示例。
this.recognition.lang属于init()还是start()？也许我正在用英语（默认）初始化SpeechRecognition（），并且当用户切换到另一种语言时没有告诉它？

init() {
    this.recognition.interimResults = true;
    switch (this.language2!.short) {
      case 'en':
        this.recognition.lang = 'en-US';
        break;
      case 'es':
        this.recognition.lang = 'es-ES';
        break;
      case 'fr':
        this.recognition.lang = 'fr-FR';
        break;
      case 'de':
        this.recognition.lang = 'de-DE';
        break;
      case 'it':
        this.recognition.lang = 'it-IT';
        break;
      case 'pt':
        this.recognition.lang = 'pt-PT';
        break;
      case 'ru':
        this.recognition.lang = 'ru-RU';
        break;
      case 'zh':
        this.recognition.lang = 'zh-CN';
        break;
      case 'fi':
        this.recognition.lang = 'fi-FI';
        break;
      default:
        this.recognition.lang = 'en-US';
        break;
    }
    this.recognition.continuous = false;
    this.recognition.addEventListener('result', (e: any) => {
      const transcript = Array.from(e.results)
        .map((result: any) => result[0])
        .map((result) => result.transcript)
        .join('');
      this.tempWords = transcript;
      this.speechRecognitionWait = false;
    });
  }

  start() {
    try {
      this.recognition.start();
      this.speechRecognitionStart = true;
      this.isStoppedSpeechRecog = false;
      this.speechRecognitionWait = true;
    } catch (error) { // doesn't prevent error "Failed to execute 'start' on 'SpeechRecognition': recognition has already started"
      this.recognition.stop();
      console.error(error);
    }
  }