1 /*
2 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /* @test
25 @summary Test SoftFilter processAudio method
26 @modules java.desktop/com.sun.media.sound
27 @key randomness
28 */
29
30 import java.io.File;
31 import java.io.FileOutputStream;
32 import java.io.IOException;
33 import java.util.Random;
34
35 import javax.sound.sampled.*;
36
37 import com.sun.media.sound.*;
38
39 public class TestProcessAudio {
40
41 public static void main(String[] args) throws Exception {
42 AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
43 SoftAudioBuffer sbuffer = new SoftAudioBuffer(3600, format);
44 SoftFilter filter = new SoftFilter(format.getSampleRate());
45 Random random = new Random(42);
46
47
48 for (int t = 0; t <= 6; t++)
49 {
50 if(t == 0) filter.setFilterType(SoftFilter.FILTERTYPE_BP12);
51 if(t == 1) filter.setFilterType(SoftFilter.FILTERTYPE_HP12);
52 if(t == 2) filter.setFilterType(SoftFilter.FILTERTYPE_HP24);
53 if(t == 3) filter.setFilterType(SoftFilter.FILTERTYPE_LP12);
54 if(t == 4) filter.setFilterType(SoftFilter.FILTERTYPE_LP24);
55 if(t == 5) filter.setFilterType(SoftFilter.FILTERTYPE_LP6);
56 if(t == 6) filter.setFilterType(SoftFilter.FILTERTYPE_NP12);
57
58
59 // Try first by reseting always
60 for (int f = 1200; f < 3600; f+=100)
61 for (int r = 0; r <= 30; r+=5) {
62 filter.reset();
63 filter.setResonance(r);
64 filter.setFrequency(f);
65 float[] data = sbuffer.array();
66 int len = sbuffer.getSize();
67 for (int i = 0; i < len; i++)
68 data[i] = random.nextFloat() - 0.5f;
69 filter.processAudio(sbuffer);
70 }
71
72 // Now we skip reseting
73 // to test how changing frequency and resonance
74 // affect active filter
75 for (int f = 100; f < 12800; f+=1200)
76 for (int r = 0; r <= 30; r+=5) {
77 filter.setResonance(r);
78 filter.setFrequency(f);
79 float[] data = sbuffer.array();
80 int len = sbuffer.getSize();
81 for (int i = 0; i < len; i++)
82 data[i] = random.nextFloat() - 0.5f;
83 filter.processAudio(sbuffer);
84 }
85 for (int f = 12800; f >= 100; f-=1200)
86 for (int r = 30; r >= 0; r-=5) {
87 filter.setResonance(r);
88 filter.setFrequency(f);
89 float[] data = sbuffer.array();
90 int len = sbuffer.getSize();
91 for (int i = 0; i < len; i++)
92 data[i] = random.nextFloat() - 0.5f;
93 filter.processAudio(sbuffer);
94 }
95 filter.reset();
96 }
97
98 }
99
100 }