001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030/**
031 *
032 */
033package org.openimaj.demos.sandbox.audio;
034
035import java.io.File;
036
037import org.openimaj.audio.SampleChunk;
038import org.openimaj.audio.conversion.MultichannelToMonoProcessor;
039import org.openimaj.audio.features.MFCC;
040import org.openimaj.video.xuggle.XuggleAudio;
041import org.openimaj.vis.general.BarVisualisation;
042
043import scala.actors.threadpool.Arrays;
044
045/**
046 *
047 *
048 * @author David Dupplaw (dpd@ecs.soton.ac.uk)
049 * @created 26 Jul 2012
050 * @version $Author$, $Revision$, $Date$
051 */
052public class MFCCVisualiser
053{
054        /**
055         * @param args
056         * @throws InterruptedException
057         */
058        public static void main(final String[] args) throws InterruptedException
059        {
060                // Setup a thread grabbing audio
061//               final JavaSoundAudioGrabber a = new JavaSoundAudioGrabber();
062//               a.setFormat( new AudioFormat( 16, 96.1, 1 ) );
063//               a.setMaxBufferSize( 1024 );
064//               new Thread( a ).start();
065                final XuggleAudio xa = new XuggleAudio(new File("heads1.mpeg"));
066                final MultichannelToMonoProcessor a = new MultichannelToMonoProcessor(xa);
067
068                // Setup a visualisation
069                final BarVisualisation bv = new BarVisualisation(1500, 500);
070                bv.setDrawValues(true);
071                bv.fixAxis( 250 );
072                bv.showWindow("MFCCs");
073
074                // Setup an MFCC processor
075                final MFCC mfcc = new MFCC();
076
077                // Read sample chunks
078                SampleChunk sc = null;
079                while ((sc = a.nextSampleChunk()) != null)
080                {
081                        bv.getVisualisationImage().zero();
082                        final double[][] mfccs = mfcc.calculateMFCC(sc.getSampleBuffer());
083                        bv.setData( Arrays.copyOfRange( mfccs[0], 1, mfccs[0].length ) );
084
085                        Thread.sleep(50);
086                }
087        }
088}