SpeechRecognizer 如何在程序进入后台后仍然可以识别语音

Question

大致程序如下：

recognizer = SpeechRecognizer();

recognizer.ContinuousRecognitionSession().ResultGenerated({ this, &MainWindow::ContinuousRecognitionSession_ResultGenerated });

recognizer.ContinuousRecognitionSession().StartAsync()

切换到其他程序，语音识别就自动停了

Answer 1

每次在statechange回调函数中重新初始化SpeechRecognizer并StartAsync后，可以再次识别；但是这样几次后，recognizer的state就会变为1后，并且再无法识别了。