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.docs.tutorial.fund.audio;
034
035import java.net.MalformedURLException;
036import java.net.URL;
037
038import org.openimaj.audio.SampleChunk;
039import org.openimaj.video.xuggle.XuggleAudio;
040import org.openimaj.vis.audio.AudioWaveform;
041
042/**
043 *      An example that demonstrates getting audio from a file (or URL) and
044 *      displaying the waveform.
045 *
046 *      @author David Dupplaw (dpd@ecs.soton.ac.uk)
047 *  @created 19 Jun 2013
048 *      @version $Author$, $Revision$, $Date$
049 */
050public class AudioWaveformDemo
051{
052        /**
053         *      Main method.
054         *      @param args Command line args (no used)
055         *      @throws MalformedURLException
056         */
057        public static void main( final String[] args ) throws MalformedURLException
058        {
059                // Construct a new audio waveform visualisation
060                final AudioWaveform aw = new AudioWaveform( 400, 400 );
061                aw.showWindow( "Waveform" );
062
063                // Open a URL to the sine wave sweep. If you have downloaded
064                // this file you should use a new File(<filename>) here.
065                final XuggleAudio jsag = new XuggleAudio(
066                                new URL( "http://www.audiocheck.net/download.php?" +
067                                                "filename=Audio/audiocheck.net_sweep20-20klin.wav" ) );
068
069                // Then send each of the frames to the visualisation
070                SampleChunk sc = null;
071                while( (sc = jsag.nextSampleChunk()) != null )
072                        aw.setData( sc.getSampleBuffer() );
073        }
074}