Mercurial > hg > svcore

comparison base/test/TestPitch.h @ 1025:88b54a185a0a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use double instead of float for frequencies in Pitch, just for confidence
author Chris Cannam
date Mon, 08 Dec 2014 15:37:12 +0000
parents 451f7f3ab6e7
children bbc4e4ee15d5
comparison
equal deleted inserted replaced
1024:d1ce7a4a920b 1025:88b54a185a0a
70 QCOMPARE(Pitch::getPitchLabelForFrequency(440, 440, false), QString("A4")); 70 QCOMPARE(Pitch::getPitchLabelForFrequency(440, 440, false), QString("A4"));
71 QCOMPARE(Pitch::getPitchLabelForFrequency(440, 220, false), QString("A5")); 71 QCOMPARE(Pitch::getPitchLabelForFrequency(440, 220, false), QString("A5"));
72 QCOMPARE(Pitch::getPitchLabelForFrequency(261.63, 440, false), QString("C4")); 72 QCOMPARE(Pitch::getPitchLabelForFrequency(261.63, 440, false), QString("C4"));
73 } 73 }
74 74
75 #define MIDDLE_C 261.6255653f 75 #define MIDDLE_C 261.6255653005986
76 76
77 void frequencyForPitch() 77 void frequencyForPitch()
78 { 78 {
79 QCOMPARE(Pitch::getFrequencyForPitch(60, 0), MIDDLE_C); 79 QCOMPARE(Pitch::getFrequencyForPitch(60, 0), MIDDLE_C);
80 QCOMPARE(Pitch::getFrequencyForPitch(69, 0), 440.f); 80 QCOMPARE(Pitch::getFrequencyForPitch(69, 0), 440.0);
81 QCOMPARE(Pitch::getFrequencyForPitch(60, 0, 220), MIDDLE_C / 2.f); 81 QCOMPARE(Pitch::getFrequencyForPitch(60, 0, 220), MIDDLE_C / 2.0);
82 QCOMPARE(Pitch::getFrequencyForPitch(69, 0, 220), 220.f); 82 QCOMPARE(Pitch::getFrequencyForPitch(69, 0, 220), 220.0);
83 } 83 }
84 84
85 void pitchForFrequency() 85 void pitchForFrequency()
86 {
87 double centsOffset = 0.0;
88 QCOMPARE(Pitch::getPitchForFrequency(MIDDLE_C, &centsOffset), 60);
89 QCOMPARE(centsOffset, 0.0);
90 QCOMPARE(Pitch::getPitchForFrequency(261.0, &centsOffset), 60);
91 QCOMPARE(int(centsOffset), -4);
92 QCOMPARE(Pitch::getPitchForFrequency(440.0, &centsOffset), 69);
93 QCOMPARE(centsOffset, 0.0);
94 }
95
96 void pitchForFrequencyF()
86 { 97 {
87 float centsOffset = 0.f; 98 float centsOffset = 0.f;
88 QCOMPARE(Pitch::getPitchForFrequency(MIDDLE_C, &centsOffset), 60); 99 QCOMPARE(Pitch::getPitchForFrequency(MIDDLE_C, &centsOffset), 60);
89 QCOMPARE(centsOffset, 0.f); 100 QCOMPARE(centsOffset, 0.f);
90 QCOMPARE(Pitch::getPitchForFrequency(261.0, &centsOffset), 60); 101 QCOMPARE(Pitch::getPitchForFrequency(261.0, &centsOffset), 60);