| /* |
| * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| @summary Test SoftFilter processAudio method |
| @modules java.desktop/com.sun.media.sound |
| */ |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.util.Random; |
| |
| import javax.sound.sampled.*; |
| |
| import com.sun.media.sound.*; |
| |
| public class TestProcessAudio { |
| |
| public static void main(String[] args) throws Exception { |
| AudioFormat format = new AudioFormat(44100, 16, 2, true, false); |
| SoftAudioBuffer sbuffer = new SoftAudioBuffer(3600, format); |
| SoftFilter filter = new SoftFilter(format.getSampleRate()); |
| Random random = new Random(42); |
| |
| |
| for (int t = 0; t <= 6; t++) |
| { |
| if(t == 0) filter.setFilterType(SoftFilter.FILTERTYPE_BP12); |
| if(t == 1) filter.setFilterType(SoftFilter.FILTERTYPE_HP12); |
| if(t == 2) filter.setFilterType(SoftFilter.FILTERTYPE_HP24); |
| if(t == 3) filter.setFilterType(SoftFilter.FILTERTYPE_LP12); |
| if(t == 4) filter.setFilterType(SoftFilter.FILTERTYPE_LP24); |
| if(t == 5) filter.setFilterType(SoftFilter.FILTERTYPE_LP6); |
| if(t == 6) filter.setFilterType(SoftFilter.FILTERTYPE_NP12); |
| |
| |
| // Try first by reseting always |
| for (int f = 1200; f < 3600; f+=100) |
| for (int r = 0; r <= 30; r+=5) { |
| filter.reset(); |
| filter.setResonance(r); |
| filter.setFrequency(f); |
| float[] data = sbuffer.array(); |
| int len = sbuffer.getSize(); |
| for (int i = 0; i < len; i++) |
| data[i] = random.nextFloat() - 0.5f; |
| filter.processAudio(sbuffer); |
| } |
| |
| // Now we skip reseting |
| // to test how changing frequency and resonance |
| // affect active filter |
| for (int f = 100; f < 12800; f+=1200) |
| for (int r = 0; r <= 30; r+=5) { |
| filter.setResonance(r); |
| filter.setFrequency(f); |
| float[] data = sbuffer.array(); |
| int len = sbuffer.getSize(); |
| for (int i = 0; i < len; i++) |
| data[i] = random.nextFloat() - 0.5f; |
| filter.processAudio(sbuffer); |
| } |
| for (int f = 12800; f >= 100; f-=1200) |
| for (int r = 30; r >= 0; r-=5) { |
| filter.setResonance(r); |
| filter.setFrequency(f); |
| float[] data = sbuffer.array(); |
| int len = sbuffer.getSize(); |
| for (int i = 0; i < len; i++) |
| data[i] = random.nextFloat() - 0.5f; |
| filter.processAudio(sbuffer); |
| } |
| filter.reset(); |
| } |
| |
| } |
| |
| } |