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constants.cpp
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constants.cpp
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/*************************************************************************
Copyright 2011-2015 Ibrahim Sha'ath
This file is part of LibKeyFinder.
LibKeyFinder is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
LibKeyFinder 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 for more details.
You should have received a copy of the GNU General Public License
along with LibKeyFinder. If not, see <http://www.gnu.org/licenses/>.
*************************************************************************/
#include "constants.h"
namespace KeyFinder {
static double FREQUENCIES[] = {
32.7031956625748,
34.647828872109,
36.708095989676,
38.8908729652601,
41.2034446141088,
43.6535289291255,
46.2493028389543,
48.9994294977187,
51.9130871974932,
55,
58.2704701897613,
61.7354126570155,
65.4063913251497,
69.2956577442181,
73.4161919793519,
77.7817459305203,
82.4068892282175,
87.307057858251,
92.4986056779087,
97.9988589954374,
103.826174394986,
110,
116.540940379523,
123.470825314031,
130.812782650299,
138.591315488436,
146.832383958704,
155.563491861041,
164.813778456435,
174.614115716502,
184.997211355817,
195.997717990875,
207.652348789973,
220,
233.081880759045,
246.941650628062,
261.625565300599,
277.182630976872,
293.664767917408,
311.126983722081,
329.62755691287,
349.228231433004,
369.994422711635,
391.99543598175,
415.304697579946,
440.000000000001,
466.163761518091,
493.883301256125,
523.251130601198,
554.365261953745,
587.329535834816,
622.253967444163,
659.255113825741,
698.456462866009,
739.98884542327,
783.9908719635,
830.609395159892,
880.000000000002,
932.327523036182,
987.76660251225,
1046.5022612024,
1108.73052390749,
1174.65907166963,
1244.50793488833,
1318.51022765148,
1396.91292573202,
1479.97769084654,
1567.981743927,
1661.21879031978,
1760,
1864.65504607236,
1975.5332050245
};
double getFrequencyOfBand(unsigned int band) {
if (band >= BANDS) {
std::ostringstream ss;
ss << "Cannot get frequency of out-of-bounds band index (" << band << "/" << BANDS << ")";
throw Exception(ss.str().c_str());
}
return FREQUENCIES[band];
}
double getLastFrequency() {
return FREQUENCIES[BANDS - 1];
}
static double MAJOR_PROFILE[SEMITONES] = {
7.23900502618145225142,
3.50351166725158691406,
3.58445177536649417505,
2.84511816478676315967,
5.81898892118549859731,
4.55865057415321039969,
2.44778850545506543313,
6.99473192146829525484,
3.39106613673504853068,
4.55614256655143456953,
4.07392666663523606019,
4.45932757378886890365,
};
static double MINOR_PROFILE[SEMITONES] = {
7.00255045060284420089,
3.14360279015996679775,
4.35904319714962529275,
5.40418120718934069657,
3.67234420879306133756,
4.08971184917797891956,
3.90791435991553992579,
6.19960288562316463867,
3.63424625625277419871,
2.87241191079875557435,
5.35467999794542670600,
3.83242038595048351013,
};
static double OCTAVE_WEIGHTS[OCTAVES] = {
0.39997267549999998559,
0.55634425248300645173,
0.52496636345143543600,
0.60847548384277727607,
0.59898115679999996974,
0.49072435317960994006,
};
static std::vector<double> tpMajor;
static std::vector<double> tpMinor;
const std::vector<double>& toneProfileMajor() {
if (tpMajor.size() == 0) {
for (unsigned int o = 0; o < OCTAVES; o++) {
for (unsigned int s = 0; s < SEMITONES; s++) {
tpMajor.push_back(OCTAVE_WEIGHTS[o] * MAJOR_PROFILE[s]);
}
}
}
return tpMajor;
}
const std::vector<double>& toneProfileMinor() {
if (tpMinor.size() == 0) {
for (unsigned int o = 0; o < OCTAVES; o++) {
for (unsigned int s = 0; s < SEMITONES; s++) {
tpMinor.push_back(OCTAVE_WEIGHTS[o] * MINOR_PROFILE[s]);
}
}
}
return tpMinor;
}
}