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}