Android Open Source - voicesmith Hoarseness Thread

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Voicesmith <http://voicesmith.jurihock.de/>
 */* w w w. ja v  a  2 s . co  m*/
 * Copyright (c) 2011-2014 Juergen Hock
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.jurihock.voicesmith.threads;

import android.content.Context;
import de.jurihock.voicesmith.FrameType;
import de.jurihock.voicesmith.Preferences;
import de.jurihock.voicesmith.Utils;
import de.jurihock.voicesmith.dsp.processors.HoarsenessProcessor;
import de.jurihock.voicesmith.dsp.stft.StftPostprocessor;
import de.jurihock.voicesmith.dsp.stft.StftPreprocessor;
import de.jurihock.voicesmith.io.AudioDevice;

public class HoarsenessThread extends AudioThread
{
  private final float[]    buffer;

  private StftPreprocessor  preprocessor  = null;
  private StftPostprocessor  postprocessor  = null;

  public HoarsenessThread(Context context, AudioDevice input, AudioDevice output)
  {
    super(context, input, output);

    Preferences preferences = new Preferences(context);
    
    FrameType frameType = FrameType.Small;
    int frameSize = preferences.getFrameSize(
      frameType, input.getSampleRate());
    int hopSize = preferences.getHopSize(
      frameType, input.getSampleRate());

    buffer = new float[frameSize];
    new Utils(context).log("Hoarseness frame size is %s.", buffer.length);

    preprocessor = new StftPreprocessor(input, frameSize, hopSize, true);
    postprocessor = new StftPostprocessor(output, frameSize, hopSize, true);
  }

  @Override
  public void dispose()
  {
    super.dispose();
    disposeProcessors();
  }

  private void disposeProcessors()
  {
    if (preprocessor != null)
    {
      preprocessor.dispose();
      preprocessor = null;
    }

    if (postprocessor != null)
    {
      postprocessor.dispose();
      postprocessor = null;
    }
  }

  @Override
  protected void doProcessing()
  {
    while (!Thread.interrupted())
    {
      preprocessor.processFrame(buffer);
      HoarsenessProcessor.processFrame(buffer);
      postprocessor.processFrame(buffer);
    }
  }
}

Java Source Code List

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