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 */
28
29 import java.io.File;
30 import java.io.FileOutputStream;
31 import java.io.IOException;
32 import java.util.Random;
33
34 import javax.sound.sampled.*;
35
36 import com.sun.media.sound.*;
37
38 public class TestProcessAudio {
39
40 public static void main(String[] args) throws Exception {
41 AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
42 SoftAudioBuffer sbuffer = new SoftAudioBuffer(3600, format);
43 SoftFilter filter = new SoftFilter(format.getSampleRate());
44 Random random = new Random(42);
45
46
47 for (int t = 0; t <= 6; t++)
48 {
49 if(t == 0) filter.setFilterType(SoftFilter.FILTERTYPE_BP12);
50 if(t == 1) filter.setFilterType(SoftFilter.FILTERTYPE_HP12);
51 if(t == 2) filter.setFilterType(SoftFilter.FILTERTYPE_HP24);
52 if(t == 3) filter.setFilterType(SoftFilter.FILTERTYPE_LP12);
53 if(t == 4) filter.setFilterType(SoftFilter.FILTERTYPE_LP24);
54 if(t == 5) filter.setFilterType(SoftFilter.FILTERTYPE_LP6);
55 if(t == 6) filter.setFilterType(SoftFilter.FILTERTYPE_NP12);
56
57
58 // Try first by reseting always
59 for (int f = 1200; f < 3600; f+=100)
60 for (int r = 0; r <= 30; r+=5) {
61 filter.reset();
62 filter.setResonance(r);
63 filter.setFrequency(f);
64 float[] data = sbuffer.array();
65 int len = sbuffer.getSize();
66 for (int i = 0; i < len; i++)
67 data[i] = random.nextFloat() - 0.5f;
68 filter.processAudio(sbuffer);
69 }
70
71 // Now we skip reseting
72 // to test how changing frequency and resonance
73 // affect active filter
74 for (int f = 100; f < 12800; f+=1200)
75 for (int r = 0; r <= 30; r+=5) {
76 filter.setResonance(r);
77 filter.setFrequency(f);
78 float[] data = sbuffer.array();
79 int len = sbuffer.getSize();
80 for (int i = 0; i < len; i++)
81 data[i] = random.nextFloat() - 0.5f;
82 filter.processAudio(sbuffer);
83 }
84 for (int f = 12800; f >= 100; f-=1200)
85 for (int r = 30; r >= 0; r-=5) {
86 filter.setResonance(r);
87 filter.setFrequency(f);
88 float[] data = sbuffer.array();
89 int len = sbuffer.getSize();
90 for (int i = 0; i < len; i++)
91 data[i] = random.nextFloat() - 0.5f;
92 filter.processAudio(sbuffer);
93 }
94 filter.reset();
95 }
96
97 }
98
99 }