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안드로이드의 미디어 레코더를 사용하여 오디오를 녹음하려고합니다. 그리고 나서 그것을 연주하고 있습니다. 녹음 된 오디오를 문자열로 변환하려면 버튼을 누르면 일부 기호와 특수 문자가 포함 된 출력이 나옵니다..3gp 오디오 파일 콘텐츠를 텍스트/문자열로 변환하는 방법?
녹음 된 오디오 파일 내용을 텍스트 또는 문자열로 변환하는 방법을 알려주세요.
여기 내 코드
public class AudioRecordTest extends Activity implements OnClickListener
{
private static final String LOG_TAG = "AudioRecordTest";
private static String mFileName = null;
private RecordButton mRecordButton = null;
private MediaRecorder mRecorder = null;
private PlayButton mPlayButton = null;
private MediaPlayer mPlayer = null;
Button gettext;
TextView getit;
String myStr;
private void onRecord(boolean start) {
if (start) {
startRecording();
} else {
stopRecording();
}
}
private void onPlay(boolean start) {
if (start) {
startPlaying();
} else {
stopPlaying();
}
}
private void startPlaying() {
mPlayer = new MediaPlayer();
try {
mPlayer.setDataSource(mFileName);
mPlayer.prepare();
mPlayer.start();
} catch (IOException e) {
Log.e(LOG_TAG, "prepare() failed");
}
}
private void stopPlaying() {
mPlayer.release();
mPlayer = null;
}
private void startRecording() {
mRecorder = new MediaRecorder();
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mRecorder.setOutputFile(mFileName);
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
try {
mRecorder.prepare();
} catch (IOException e) {
Log.e(LOG_TAG, "prepare() failed");
}
mRecorder.start();
}
private void stopRecording() {
mRecorder.stop();
mRecorder.release();
mRecorder = null;
}
class RecordButton extends Button {
boolean mStartRecording = true;
OnClickListener clicker = new OnClickListener() {
public void onClick(View v) {
onRecord(mStartRecording);
if (mStartRecording) {
setText("Stop recording");
} else {
setText("Start recording");
}
mStartRecording = !mStartRecording;
}
};
public RecordButton(Context ctx) {
super(ctx);
setText("Start recording");
setOnClickListener(clicker);
}
}
class PlayButton extends Button {
boolean mStartPlaying = true;
OnClickListener clicker = new OnClickListener() {
public void onClick(View v) {
onPlay(mStartPlaying);
if (mStartPlaying) {
setText("Stop playing");
} else {
setText("Start playing");
}
mStartPlaying = !mStartPlaying;
}
};
public PlayButton(Context ctx) {
super(ctx);
setText("Start playing");
setOnClickListener(clicker);
}
}
public AudioRecordTest() {
mFileName = Environment.getExternalStorageDirectory().getAbsolutePath();
mFileName += "/audiorecordtest.3gp";
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
LinearLayout l = (LinearLayout)findViewById(R.id.Component);
LinearLayout ll = new LinearLayout(this);
ll.setMinimumHeight(90);
ll.setMinimumWidth(200);
mRecordButton = new RecordButton(this);
ll.addView(mRecordButton,
new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT,
0));
mPlayButton = new PlayButton(this);
ll.addView(mPlayButton,
new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT,
0));
l.addView(ll);
// setContentView(ll);
gettext=(Button) findViewById(R.id.button1);
getit=(TextView) findViewById(R.id.textView1);
gettext.setOnClickListener(this);
}
@Override
public void onPause() {
super.onPause();
if (mRecorder != null) {
mRecorder.release();
mRecorder = null;
}
if (mPlayer != null) {
mPlayer.release();
mPlayer = null;
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
myStr= readFileAsString(mFileName);
getit.setText(myStr);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/* read the audio file and convert it in to string but it is in non readable format
*
*/
public static String readFileAsString(String filePath) throws java.io.IOException {
BufferedReader reader = new BufferedReader(new FileReader(filePath));
String line, results = "";
while((line = reader.readLine()) != null)
{
results += line;
}
reader.close();
return results;
}
}
도움이 필요하다.