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androidaudiovoice-recording

Creating audio file in internal memory in Android

I want the audio file created during audio capture to be stored in the internal memory and played back from there. I am getting media player prepare failed() when trying to do so

Solution

  • Here's an example of how to do this using MediaRecorder. First add the correct permissions (you will need to add more if you choose to use external storage).

    <uses-permission android:name="android.permission.RECORD_AUDIO" />

    This records the audio in internal storage:

    MediaRecorder recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(getFilesDir()+"/audio.m4a");
recorder.prepare();
recorder.start(); 
...
recorder.stop();
recorder.reset();
recorder.release()

    This plays the audio from internal storage:

    MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource(getFilesDir()+"/audio.m4a");
mediaPlayer.prepare();
mediaPlayer.start();

    getFilesDir() gives you the path to your internal files. Here's a link to more information on data storage, http://developer.android.com/guide/topics/data/data-storage.html#filesInternal.