startSpeechRecognition() {
        try {
            SpeechRecognitionService.activate();
            SpeechRecognitionService.setNoMatchCallback((transcript) => {
                console.log(transcript);
                this.handleFormInputSubmit(transcript);
            });
            SpeechRecognitionService.setUnrecognizedCallback((transcript) => {
                console.log("I'm not sure, but I think you said, '" + transcript + "'");
                window.alert('info ' + "I'm not sure, but I think you said, '" + transcript + "'");
            });

            SpeechRecognitionService.startRecognition();
        } catch (e) {
            console.log(e);
            window.alert('error ' + e.message);
        }
    }