Can Android.media.audiofx.Visualizer be used without having to play an audio file?

class android.media.audiofx.Visualizer has a method

public int getWaveForm (byte[] waveform)

      

        
        
        
      

    

which returns the x, y coordinates to render the audioSession waveform:

public Visualizer (int audioSession)

      

        
        
        
      

    

Can I use the Visualizer without having to play a sound file?

If not, is there such an equivalent library ?:

 public int getWaveForm (byte[] waveform)

      

        
        
        
      

    

Note: The following answer is not correct even though it is marked CLOSED - Android - create a sound file form (OGG)