title: How to get audio source from sound file (mp3) ?
body: <p>I'm trying to get sound level from mp3 file that is playing. But first, I should attach that sound. So,</p>
  
  <p><strong>How to attach sound from mp3 file as audio source in my code?</strong></p>
  
  <p>As far as I know, if we want to get audio source from MIC, we can use this code below.</p>
  
  <pre><code>mRecordInstance = new AudioRecord( MediaRecorder.AudioSource.MIC, FREQUENCY,
      CHANNEL, ENCODING, BUFFSIZE
  );
  </code></pre>
  
  <p>And what about if the audio source is mp3 file ?
  I don't know anymore for solving this problem.</p>
  
  <p>Please, help me..</p>
  
  <p>Thank you,, :)</p>