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kern/libk/include/sound/notes.h
T

109 lines
2.3 KiB
C

#ifndef SOUND_NOTES_H
#define SOUND_NOTES_H
/*
0 1 2 3 4 5 6 7 8
C 16.35 32.7 65.41 130.81 261.63 523.25 1046.5 2093 4186
C# 17.32 34.65 69.3 138.59 277.18 554.37 1108.73 2217.46 4434.92
D 18.35 36.71 73.42 146.83 293.66 587.33 1174.66 2349.32 4698.63
D# 19.45 38.89 77.78 155.56 311.13 622.25 1244.51 2489 4978
E 20.6 41.2 82.41 164.81 329.63 659.25 1318.51 2637 5274
F 21.83 43.65 87.31 174.61 349.23 698.46 1396.91 2793.83 5587.65
F# 23.12 46.25 92.5 185 369.99 739.99 1479.98 2959.96 5919.91
G 24.5 49 98 196 392 783.99 1567.98 3135.96 6271.93
G# 25.96 51.91 103.83 207.65 415.3 830.61 1661.22 3322.44 6644.88
A 27.5 55 110 220 440 880 1760 3520 7040
A# 29.14 58.27 116.54 233.08 466.16 932.33 1864.66 3729.31 7458.62
B 30.87 61.74 123.47 246.94 493.88 987.77 1975.53 3951 7902.13
*/
// Note frequencies in Hz (rounded down)
// b - Flat
// s - Sharp (#)
typedef enum {
// 2nd Octave
C2 = 65,
Cs2 = 69,
Db2 = Cs2,
D2 = 73,
Ds2 = 77,
Eb2 = Ds2,
E2 = 82,
F2 = 87,
Fs2 = 92,
Gb2 = Fs2,
G2 = 98,
Gs2 = 103,
Ab2 = Gs2,
A2 = 110,
As2 = 116,
Hb2 = As2,
H2 = 123,
// 3rd Octave
C3 = 130,
Cs3 = 138,
Db3 = Cs3,
D3 = 146,
Ds3 = 155,
Eb3 = Ds3,
E3 = 164,
F3 = 174,
Fs3 = 185,
Gb3 = Fs3,
G3 = 196,
Gs3 = 207,
Ab3 = Gs3,
A3 = 220,
As3 = 233,
Hb3 = As3,
H3 = 246,
// 4th Octave
C4 = 261,
Cs4 = 277,
Db4 = Cs4,
D4 = 293,
Ds4 = 311,
Eb4 = Ds4,
E4 = 329,
F4 = 349,
Fs4 = 370,
Gb4 = Fs4,
G4 = 392,
Gs4 = 415,
Ab4 = Gs4,
A4 = 440, // Standard A, 440Hz
As4 = 466,
Hb4 = As4,
H4 = 493,
// 5th Octave
C5 = 523,
Cs5 = 554,
Db5 = Cs5,
D5 = 587,
Ds5 = 622,
Eb5 = Ds5,
E5 = 659,
F5 = 698,
Fs5 = 739,
Gb5 = Fs5,
G5 = 783,
Gs5 = 830,
Ab5 = Gs5,
A5 = 880,
As5 = 932,
Hb5 = As5,
H5 = 987,
} note_t;
typedef enum {
WHOLE = 1,
HALF = 2,
QUARTER = 4,
EIGHT = 8,
SIXTEENTH = 16,
THIRTYSECONDTH = 32,
} beatType_t;
#endif