ͧ  

            ⷹͧ§ͧwbr>ͧwbr> ֧ Է (pitch) Դҡͧwbr>ͧwbr> Ѵѹ˹ ӹǹͺԹҷ ͧ˹ ԷŴŧ˹͡ൿ  ҵҹͧԷçҧ 440 췫  ֧ⷹѧ͡٧

            Ѻ 88   ٻͧء 12 ش 12 7 5   A ֧ G ǹ¡ () ŵ ( ) ͧ ŵͧŴŧ ҧ F G F G ŵ Ѻҧ ҧԴѺͧ ͧҧѹ B C     E F ö¡ŵ ѧҧ C ŵ B   B C

            ҡçҧͧ A 440 Hz ҹѹ ֧Եʵ Ţ 1.059463 ٳ

    ҹ x =
A3 La           220.0 Hz
A#3   = 220 x 1.059463 = 233.1 Hz
B3 Ti = 233.1 x 1.059463 = 246.9 Hz
C4 Do = 246.9 x 1.059463 = 261.6 Hz
C#4   = 261.6 x 1.059463 = 277.2 Hz
D4 Re = 277.2 x 1.059463 = 293.7 Hz
D#4   = 293.7 x 1.059463 = 311.1 Hz
E4 Mi = 311.1 x 1.059463 = 329.6 Hz
F4 Fa = 329.6 x 1.059463 = 349.2 Hz
F#4   = 349.2 x 1.059463 = 370.0 Hz
G4 So = 370.0 x 1.059463 = 392.0 Hz
G#4   = 392.0 x 1.059463 = 415.3 Hz
A4 La = 415.3 x 1.059463    =       440.0 Hz

            ҡѡ ͧѹѴǹ

 C#/C  1.0594630

            ͧ͡ൿѹ

  A4/A3     440/220  =  2/1

            ҡ ͧŧ٧  ѧҧ͡ൿѹ ѵǹ 2:1  ͧǹѺ 1:2

 


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