音声をテキストに変換して AWT textArea に表示しようとしています。しかし、音声からテキストへの変換関数の出力は while ループ内で生成され、textArea に表示できません。null ポインター例外が発生しています。誰か助けてください。
public class Speechrec {
private static TextArea textArea;
String resultText;
private String dr;
public void recognizer(String[] args) {
try {
URL url;
if (args.length > 0) {
url = new File(args[0]).toURI().toURL();
}
else {
url = Speechrec.class.getResource("speechrec.config.xml");
}
System.out.println("Loading...");
ConfigurationManager cm = new ConfigurationManager(url);
Recognizer recognizer = (Recognizer) cm.lookup("recognizer");
Microphone microphone = (Microphone) cm.lookup("microphone");
/* allocate the resource necessary for the recognizer */
recognizer.allocate();
/* the microphone will keep recording until the program exits */
if (microphone.startRecording()) {
System.out.println("Say: some greetings");
while (true) {
System.out.println("Start speaking. Press Ctrl-C to quit.\n");
Result result = recognizer.recognize();
if (result != null) {
String resultText = result.getBestFinalResultNoFiller();
textArea.setText(resultText);
}
else {
System.out.println("I can't hear what you said.\n");
}
}
}
else {
System.out.println("Cannot start microphone.");
recognizer.deallocate();
System.exit(1);
}
}
catch (Exception) {
// exception handling
}
}
public static void main( final String[] args) throws IOException {
Speechrec sp1=new Speechrec();
Frame frame=new Frame("speech to sign language converter");
TextArea textarea=new TextArea (05,30);
Button button = new Button("Start speaking");
// ...
frame.add(button,BorderLayout.SOUTH);
// ...
frame.setLayout(new FlowLayout(FlowLayout.TRAILING,50,15));
frame.setSize(500,400);
frame.setVisible(true);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e1) {
Speechrec sp=new Speechrec();
sp.recognizer(args);
}});
}
}