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private static final String MEDIA_PATH = new String("/sdcard/");
 private int button_state = 0;
 
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        final Button button1 = (Button)findViewById(R.id.Button01);
        final Button button2 = (Button)findViewById(R.id.Button02);
               
       
        final  MediaRecorder recorder = new MediaRecorder();
        recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
        recorder.setOutputFile(MEDIA_PATH);       
       
        //RECORD_AUDIO permission 요망 and record부분
        button1.setOnClickListener(new Button.OnClickListener() {
   public void onClick(View v) {   
    try{  
     Toast.makeText(getApplicationContext(), "녹음준비..", Toast.LENGTH_SHORT).show();
     recorder.prepare();
     button_state = 1;
     recorder.start();
    }catch(IOException exception){     
     recorder.reset();
     recorder.release(); 
     button_state=2;
     Toast.makeText(getApplicationContext(), "녹음에러..", Toast.LENGTH_SHORT).show();
    }     
   }         
        });       

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-에러내용
02-10 13:00:47.170: ERROR/audio_input(1203): unsupported parameter: x-pvmf/media-input-node/cap-config-interface;valtype=key_specific_value
02-10 13:00:47.170: ERROR/audio_input(1203): VerifyAndSetParameter failed

try부분에러 에러부분으로 넘어갑니다. path를 잘못지정해서그런건지 딴이유가 있는건지 이유를 알고싶습니다.