Android Open Source - AudioReviser Android Audio Manager

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Back to project page AudioReviser.
License

The source code is released under:
GNU General Public License
If you think the Android project AudioReviser listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.willmischlewski.audiorevisor;
// w w  w.  j ava 2  s .  c  om
import java.io.File;
import java.io.IOException;

import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.os.Environment;
import android.util.Log;

public class AndroidAudioManager {

  private MediaRecorder mRecorder;
  private MediaPlayer mediaPlayer;
  private MediaPlayer mediaPlayerVoice;

  public String AppFolder;
  
  public AndroidAudioManager() {
  }
  
  public AndroidAudioManager(String folder) {
    createAppDirectory(folder);
  }
  
    public boolean createAppDirectory(String FolderName)
    {
      AppFolder = Environment.getExternalStorageDirectory().getAbsolutePath() + "/" + FolderName;
      File folder = new File(AppFolder);
      if(!folder.exists())
      {
        return folder.mkdir();
      }
      else
      {
        return true;
      }
    }
  
  public void beginRecordingAudio(String fname)
    {
      String mFileName = AppFolder;
        mFileName += "/" +  fname + ".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.v("WillDev", "Exception when preparing mRecorder");
        return;
      }
      mRecorder.start();
    }
    
    public void endRecordingAudio()
    {
      mRecorder.stop();
      mRecorder.release();
      mRecorder = null;
    }
    
    public int getRecordingDuration(String fname)
    {
    mediaPlayer = new MediaPlayer();
      mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
      try{
        mediaPlayer.setDataSource(AppFolder + "/" + fname + ".3gp");
      }
      catch (Exception e)
      {
        Log.v("WillDev","Exception while trying to get duration of file " + fname);
        Log.v("WillDev",e.getMessage());
        return -1;
      }
      try {
      mediaPlayer.prepare();
    } catch (IllegalStateException e) {
        Log.v("WillDev","Exception while trying to prepare media player " + fname);
    } catch (IOException e) {
        Log.v("WillDev","Exception while trying to prepare media player " + fname);
    }
      int result = mediaPlayer.getDuration();
    mediaPlayer.release();
      return result;
    }
    
    public void PlayAudioFile(String fname)
    {
      String mFileName = AppFolder;
        mFileName += "/" +  fname;
      
      mediaPlayer = new MediaPlayer();
      mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
      try{
        mediaPlayer.setDataSource(mFileName);
      }
      catch (Exception e)
      {
        Log.v("WillDev","Exception while trying to set data source to play file");
        return;
      }
      
      try {
      mediaPlayer.prepare();
    } catch (IllegalStateException e) {
        Log.v("WillDev","Exception while trying to prepare media player");
    } catch (IOException e) {
        Log.v("WillDev","Exception while trying to prepare media player");
    }
      mediaPlayer.start();
    }
    
    public int getAudioPosition() {
      return mediaPlayer.getCurrentPosition();
    }
    
    public void resumeAudioPlaybackAt(String fname, int time) {
      PlayAudioFile(fname);
      mediaPlayer.seekTo(time);
    }
    
    public void StopPlayingAudio()
    {
      mediaPlayer.pause();
      mediaPlayer.release();
    }
    
    public void PlayAudioFileVoice(String fname)
    {
      String mFileName = AppFolder;
        mFileName += "/" +  fname + ".3gp";
      
      mediaPlayerVoice = new MediaPlayer();
      mediaPlayerVoice.setAudioStreamType(AudioManager.STREAM_MUSIC);
      try{
        mediaPlayerVoice.setDataSource(mFileName);
      }
      catch (Exception e)
      {
        Log.v("WillDev","Exception while trying to set data source to play file");
        return;
      }
      
      try {
        mediaPlayerVoice.prepare();
    } catch (IllegalStateException e) {
        Log.v("WillDev","Exception while trying to prepare media player");
    } catch (IOException e) {
        Log.v("WillDev","Exception while trying to prepare media player");
    }
      mediaPlayerVoice.start();
    }
    
    public void StopPlayingAudioVoice()
    {
      mediaPlayerVoice.pause();
      mediaPlayerVoice.release();
    }
  
    public void StopEverything()
    {
      try {
        if(mediaPlayerVoice.isPlaying()) {
          StopPlayingAudioVoice();
        }
      }
      catch (Exception e) {
        
      }
      try {
        if(mediaPlayer.isPlaying()) {
          StopPlayingAudio();
        }
      }
      catch (Exception e) {
        
      }
    }
}
Java Source Code List
