Develop Reference

Android can't record incoming calls with clear voice

I can only record my voice from this code, not against the turns.
And I used MediaRecorder.AudioSource.VOICE_CALL instead of MediaRecorder.AudioSource.MIC
But still I am getting my voice only.
Here is my code
public class RecorderService extends IntentService {
private Context mContext;
private MediaRecorder recorder;
static final String TAGS = "RecorderService";
private String phoneNumber;
public RecorderService() {
super("RecorderService");
}
#Override
protected void onHandleIntent(Intent intent) {
}
#Override
public int onStartCommand(#Nullable Intent intent, int flags, int startId) {
Log.e(TAGS, "Started!");
mContext = getApplicationContext();
phoneNumber = intent.getStringExtra("number");
Log.e(TAGS, "Calling Number : " + phoneNumber);
recorder = new MediaRecorder();
startRecording();
return START_NOT_STICKY;
}
#Override
public void onDestroy() {
super.onDestroy();
Log.e(TAGS, "Stopped!");
stopRecording();
}
private void startRecording() {
Log.e(TAGS, "Recording Started");
File file = new File(Environment.getExternalStorageDirectory()
+ File.separator
+ "My Records"
+ File.separator);
recorder.reset();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
recorder.setOutputFile(file.getAbsolutePath() + "record.mp3");
try {
recorder.prepare();
} catch (IOException e) {
e.printStackTrace();
}
recorder.start();
}
private void stopRecording() {
Log.e(TAGS, "Recording Stopped");
if (recorder != null) {
recorder.stop();
recorder.reset();
recorder.release();
recorder = null;
}
}
}
Any suggestions!

You can't. Not unless you're a system app (which you need to be installing your own custom OS or be root to get). VOICE_CALL requires the CAPTURE_AUDIO_OUTPUT permission which is a system permission- normal apps can't use it.
How do the other apps on the Play store do it? They use the mic, and hope the output of the call is loud enough to pick it up.

Call Receiver's voice is not recording

Hi I am making call recorder application. In my app I am allowing user to record call. and then recording will be saved in directory. But right now I am facing one issue in my application. after making call if I check in saved recordings, only my voice is I can listen, call receiver's voice is not recording. can any one help me to solve this issue?
public class RecorderService extends Service {
MediaRecorder recorder;
static final String TAGS=" Inside Service";
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
public int onStartCommand(Intent intent,int flags,int startId)
{
recorder = new MediaRecorder();
recorder.reset();
String phoneNumber=intent.getStringExtra("number");
Log.d(TAGS, "Phone number in service: "+phoneNumber);
String time=new CommonMethods().getTIme();
String path=new CommonMethods().getPath();
String rec=path+"/"+phoneNumber+"_"+time+".mp4";
recorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
recorder.setOutputFile(rec);
try {
recorder.prepare();
} catch (IOException e) {
e.printStackTrace();
}
recorder.start();
Log.d(TAGS, "onStartCommand: "+"Recording started");
return START_NOT_STICKY;
}
public void onDestroy()
{
super.onDestroy();
recorder.stop();
recorder.reset();
recorder.release();
recorder=null;
Log.d(TAGS, "onDestroy: "+"Recording stopped");
}
}

Looking for an example using AudioRecord

Am trying to write an app that reads from the microphone and where I, in the same app, write the results/buffer myself to my own file (in a separate thread). Believe me I have Googled till my fingers were numb. But I am having a problem with the whole "callback" part.
Whether it's the onPeriodicNotification or onMarkerReached part, I just can't seem to get it right. Not looking for anyone to write it for me, but if I could just find the proper shell online, I could do it myself.
So if anyone knows of a good example, please.

Made a simple Sound Manager in which you can record sound :
public class SoundManager {
private static final String TAG = SoundManager.class.getSimpleName();
public boolean isRecording = false;
private MediaRecorder recorder;
private String audioFileName = "sound";
private Context mContext;
private String storePath;
public SoundManager(Context context) {
this.mContext = context;
}
public void onRecord(boolean toStart) {
if (toStart) {
try {
startRecording();
isRecording = true;
} catch (IOException e) {
Log.d("Tag", e.toString());
}
} else {
stopRecording();
}
}
private void startRecording() throws IOException {
stopRecording();
audioFileName = UUID.randomUUID().toString();
storePath = new File(mContext.getExternalFilesDir(null), "/images/"+ audioFileName+".3gp").getAbsolutePath();
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
recorder.setOutputFile(storePath);
recorder.prepare();
recorder.start();
}
private void stopRecording() {
if (isRecording && recorder != null) {
try {
recorder.stop();
recorder.release();
} catch (RuntimeException e) {
recorder.release();
Log.d(TAG, e.toString());
}
recorder = null;
isRecording = false;
}
}
public File getAudioOutputPath() {
return new File(storePath);
}
}
Uses:
Start Record : soundManager.onRecord(true);
Stop Record : soundManager.onRecord(false);
get sound file path : soundManager.getAudioOutputPath();
Add audio permission in your Manifest:
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
`

Android Video Recording using Media Recorder is Not working

I am trying to Record a Video, But It's getting crash at Media Record starts and Media Record Prepare .please Help Me... Here Is My Code...
private boolean startRecording() {
camera.unlock();
try {
mediaRecorder = new MediaRecorder();
mediaRecorder.setOnErrorListener(new MediaRecorder.OnErrorListener() {
#Override
public void onError(MediaRecorder mr, int what, int extra) {
Log.i(TAG, "Error");
}
});
second=0;
minute=0;
recordCountTimer = new CountDownTimer(Long.MAX_VALUE,1000) {
#Override
public void onTick(long millisUntilFinished) {
second++;
if(second>=60){
second=0;
minute++;
}
recordCount.setText(String.format("%02d:%02d",minute,second));
}
#Override
public void onFinish() {
finish();
}
}.start();
mediaRecorder.setCamera(camera);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
Log.d(TAG, "A");
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
Log.e(TAG, "B");
mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
defaultVideoPath= FileManger.getOutputMediaFile(MEDIA_TYPE_VIDEO).getAbsolutePath();
// uriVid = Uri.parse(FileManger.getOutputMediaFile(MEDIA_TYPE_VIDEO).getAbsolutePath());
// defaultVideoPath = getRealPathFromUri(uriVid);
mediaRecorder.setOutputFile(defaultVideoPath);
mediaRecorder.setVideoSize(recordingCameraSurface.getWidth(), recordingCameraSurface.getHeight());
mediaRecorder.setVideoFrameRate(20);
Log.v(TAG, "C");
mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
mediaRecorder.setMaxFileSize(50000);
mediaRecorder.prepare();
Log.w(TAG, "D");
mediaRecorder.start();
Log.e(TAG, "E");
} catch (IOException e) {
releaseMediaRecorder();
return false;
}catch (IllegalStateException t){
releaseMediaRecorder();
return false;
}
return true;
}
It's giving like
RECORDER_OK﹕ B
MediaRecorder﹕ setOutputFormat called in an invalid state: 4
and Here I am Going to next Activity:
Intent intent = new Intent(RecordBuyPage.this,CheckAndSaveActivity.class);
intent.putExtra("VIDEOFILEPATH", defaultVideoPath);
startActivity(intent);
and in the next Activity i am getting the path null like:
player.setDataSource(getIntent().getStringExtra("VIDEOFILEPATH"));
I think My Order Of Calling Media Recorder Is Correct But it also getting trouble at:
mediarecoreder.prepare().
Please Give Some Valid Solution, I tried a lot From Stack overflow, but it's not working.... I think Video Is Not Recording, because when I passed it through intent it's taking null...

I hope you followed this link of sample code(Media Recorder)
https://github.com/googlesamples/android-MediaRecorder
and it has some bugs in it to record media in portrait mode so to fix this issue please follow this link
and in this link you will get your media path where it stored and you can easily pass it to another activity. Have a look I hope it helps you.
to get the path of media on stop capturing you can do this on your CaptureClick method
Log.d("Video file path", CameraHelper.getOutputMediaFile(
CameraHelper.MEDIA_TYPE_VIDEO).toString());
and complete button OnClickListener
public void onCaptureClick(View view) {
if (isRecording) {
// BEGIN_INCLUDE(stop_release_media_recorder)
// stop recording and release camera
mMediaRecorder.stop(); // stop the recording
releaseMediaRecorder(); // release the MediaRecorder object
mCamera.lock(); // take camera access back from MediaRecorder
// inform the user that recording has stopped
setCaptureButtonText("Capture");
isRecording = false;
releaseCamera();
Log.d("Video file path", CameraHelper.getOutputMediaFile(
CameraHelper.MEDIA_TYPE_VIDEO).toString());
// END_INCLUDE(stop_release_media_recorder)
} else {
// BEGIN_INCLUDE(prepare_start_media_recorder)
new MediaPrepareTask().execute(null, null, null);
// END_INCLUDE(prepare_start_media_recorder)
}
}
Please follow these two links provided above, it might solve your issue.

try this
public class VideoCapture extends Activity implements OnClickListener
,SurfaceHolder.Callback {
MediaRecorder recorder;
SurfaceHolder holder;
boolean recording = false;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
recorder = new MediaRecorder();
initRecorder();
setContentView(R.layout.main);
SurfaceView cameraView = (SurfaceView) findViewById(R.id.CameraView);
holder = cameraView.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
cameraView.setClickable(true);
cameraView.setOnClickListener(this);
}
private void initRecorder() {
recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
CamcorderProfile cpHigh = CamcorderProfile
.get(CamcorderProfile.QUALITY_HIGH);
recorder.setProfile(cpHigh);
recorder.setOutputFile("/sdcard/videocapture_example.mp4");
recorder.setMaxDuration(50000); // 50 seconds
recorder.setMaxFileSize(5000000); // Approximately 5 megabytes
}
private void prepareRecorder() {
recorder.setPreviewDisplay(holder.getSurface());
try {
recorder.prepare();
} catch (IllegalStateException e) {
e.printStackTrace();
finish();
} catch (IOException e) {
e.printStackTrace();
finish();
}
}
public void onClick(View v) {
if (recording) {
recorder.stop();
recording = false;
// Let's initRecorder so we can record again
initRecorder();
prepareRecorder();
} else {
recording = true;
recorder.start();
}
}
public void surfaceCreated(SurfaceHolder holder) {
prepareRecorder();
}
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
}
public void surfaceDestroyed(SurfaceHolder holder) {
if (recording) {
recorder.stop();
recording = false;
}
recorder.release();
finish();
}
}
Include Permissions in Manifest file :
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Lag on my buttons

I made a code which allow me to record the audio from the microphone. Strange thing is that when I click my button it appears to have some kind of lag, the button remains visually pressed for half a second and then starts it method. is there a reason for this, and how could I solve this?
What I am having right now:
private void onRecord(boolean start) {
if (start) {
startRecording();
} else {
stopRecording();
}
}
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;
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.bRecord:
if (mStartRecording) {
mRecordButton.setText("Stop Recording");
onRecord(true);
mStartRecording = false;
} else {
mRecordButton.setText("Start Recording");
mStartRecording = true;
onRecord(false);
}
break;
}
EDIT
Thanks for the help, I decided to work with a service but am struggling a little bit. I created:
public class RecordService extends IntentService {
private MediaRecorder mRecorder = null;
private String mFileName;
private static final String LOG_TAG = "RecordService";
public RecordService() {
super("RecordService");
// TODO Auto-generated constructor stub
}
#Override
protected void onHandleIntent(Intent intent) {
mFileName = Environment.getExternalStorageDirectory().getAbsolutePath();
mFileName += "/audiorecordtest.3gp";
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();
}
}
and
case R.id.bRecord:
if (mStartRecording) {
mRecordButton.setText("Stop Recording");
//onRecord(true);
Intent service = new Intent(myContext, RecordService.class);
myContext.startService(service);
mStartRecording = false;
} else {
mRecordButton.setText("Start Recording");
mStartRecording = true;
onRecord(false);
}
break;
Having a question about this, how can I now stop this service (= stop recording) (by clicking f.e. the button again) and communicate an idea back to the activity? I tried to add a stop function in the service but it is not seem to work when I call service.stop() to stop it..

My guess is that since you're starting the recording in the same thread as the UI, the UI doesn't respond until all the code in startRecording() has finished executing. You might want to consider calling onRecord in its own thread.

You could use AsyncTask for short Operations (a few seconds at the
most.)
Use Service for long running Operations
Attention: AsyncTask takes care of the thread handling for you. If you write a Service, you have to spawn your own thread otherwise it will run on the UI thread.
One of several ways to do it:
Service:
#Override
protected void onHandleIntent(Intent intent) {
//your recorder code
//get the messenger from intent
Bundle extras = intent.getExtras();
if (extras != null) {
Messenger messenger = (Messenger) extras.get("MESSENGER");
try {
//send a message back to the activity
messenger.send(...);
} catch (android.os.RemoteException e1) {
Log.w(getClass().getName(), "Exception sending message", e1);
}
}
}
Activity:
Definition of the handler
private Handler handler = new Handler() {
public void handleMessage(Message message) {
//do something with the message from the service
};
};
The code to start the service
Intent intent = new Intent(this, YourService.class);
Messenger messenger = new Messenger(handler);
intent.putExtra("MESSENGER", messenger);
startService(intent);