I'm trying to record sound using Android Emulator. I know that this question is popular over the internet, I checked many posts, it seems that only one person succeded: Can the Android emulator record and play back audio using pc hardware?. (it think he used
File fTmFile; insteadof String fTmpFile;
which i also tried). And following Philip's advice and the official site tutorial http://developer.android.com/guide/topics/media/audio-capture.html and also other resources, I'm still not able to record. My application throws exception at line:
fMediaRecorder.prepare();
more exactley, this is what I first get:
W/System.err(1042): java.io.FileNotFoundException: /mnt/sdcard/audiorecordtest.3gp (Permission denied)
which makes me think is something wrong with the storage location, because even I added 'SD Card Support' property for the emulator with size 256 MiB, I'm not able to acces it, furthermore I can see in the emulator the message: "Your phone does not have a SD Card inserted" when I go to Music.
I added both audio record and external storage permissions, in AndroidManifest.xml and both audio (record+playback) hardware settings to the emulator 2.3.3 on Win 7. Is anything wrong within my app, the way I storage the file or something else? Please, if anybody has any idea feel free to share, it will be appreciated.
Here is the full source code:
import java.io.File;
import java.io.FileDescriptor;
import java.io.IOException;
import android.app.Activity;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class RecordSoundActivity extends Activity {
private MediaRecorder fMediaRecorder = null;
private Button btnrecord;
private Button btnstop;
String fTmpFile;
public RecordSoundActivity() {
fTmpFile = Environment.getExternalStorageDirectory().getPath();
fTmpFile += "/audiorecordtest.3gp";
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btnrecord = (Button) findViewById(R.id.button1);
btnstop = (Button) findViewById(R.id.button2);
btnrecord.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(RecordSoundActivity.this, "Recording...", Toast.LENGTH_LONG).show();
Recording();
}
});
btnstop.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
fMediaRecorder.stop();
fMediaRecorder.release();
}
});
}
public void Recording() {
fMediaRecorder = new MediaRecorder();
fMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
fMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
fMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
fMediaRecorder.setAudioChannels(1);
fMediaRecorder.setAudioSamplingRate(8000);
fMediaRecorder.setOutputFile(fTmpFile);
try {
fMediaRecorder.prepare();
} catch (IOException e) {
// TODO: handle exception
e.printStackTrace();
}
try {
fMediaRecorder.start();
} catch (IllegalStateException e) {
// TODO: handle exception
e.printStackTrace();
}
//fMediaRecorder.stop();
//fMediaRecorder.release();
}
}
