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.audio; 034 035import org.openimaj.audio.AudioPlayer; 036import org.openimaj.audio.AudioStream; 037import org.openimaj.audio.filters.VolumeAdjustProcessor; 038import org.openimaj.demos.Demo; 039import org.openimaj.video.xuggle.XuggleAudio; 040 041/** 042 * A basic demonstration that shows playing audio through the OpenIMAJ 043 * APIs. It also demonstrates the application of an audio processor to a stream 044 * which can be played. 045 * 046 * @author David Dupplaw (dpd@ecs.soton.ac.uk) 047 * @created Nov 10, 2011 048 * 049 */ 050@Demo( 051 author = "David Dupplaw" , 052 description = "Demonstrates playing audio from OpenIMAJ" , 053 keywords = { "audio", "player", "processing" } , 054 title = "Audio Player" 055) 056public class AudioPlayerDemo 057{ 058 /** The file we're going to play */ 059 public final static String AUDIO_FILE = "/org/openimaj/demos/audio/140bpm-Arp.mp3"; 060 061 /** 062 * Default constructor 063 */ 064 public AudioPlayerDemo() 065 { 066 XuggleAudio s = new XuggleAudio( 067 AudioPlayerDemo.class.getResource( AUDIO_FILE ) ); 068 069 playNormalSound( s ); 070// playProcessedSound( s ); 071 } 072 073 /** 074 * Plays a sound through the audio API. 075 */ 076 protected void playNormalSound( AudioStream s ) 077 { 078 AudioPlayer ap = new AudioPlayer( s ); 079 ap.run(); 080 } 081 082 /** 083 * Plays a processed sound through the audio API. 084 */ 085 protected void playProcessedSound( AudioStream s ) 086 { 087 VolumeAdjustProcessor vap = new VolumeAdjustProcessor( 0.4f, s ); 088 089 AudioPlayer ap = new AudioPlayer( vap ); 090 ap.run(); 091 } 092 093 /** 094 * 095 * @param args 096 */ 097 public static void main( String[] args ) 098 { 099 new AudioPlayerDemo(); 100 } 101}