Frequencies of notes

Change the slider n to see the notes and their frequencies, and listen to their sound.

Amplitude

Jouer le son (15 s)

Couper le son

A = 0.46 (slider from 0 to 1, step 0.01)
n = 0 (slider from -9 to 3, step 1)
f: (2^(n / 12) * 440)
g(x) = (A * sin((((f * 2) * π) * x)))
B = (-0.006437733685822861, 3.379812270403614)
a = OrthogonalLine(B, xAxis)
E = Point(a)
b = OrthogonalLine(B, yAxis)
D = Point(b)
w = 2.6
A1 = -0.0052
B1: (A1, w)
A2: A1 + 9.2E-4
B2: (A2, w)
A3: A2 + 9.20000000000002E-4
B3: (A3, w)
A4: A3 + 9.20000000000002E-4
A5: A4 + 9.20000000000002E-4
A6: A5 + 9.20000000000002E-4
A7: A6 + 9.20000000000002E-4
A8: A7 + 9.20000000000002E-4
A9: A8 + 9.20000000000002E-4
A10: A9 + 9.20000000000002E-4
B4: (A4, w)
B5: (A5, w)
B6: (A6, w)
B7: (A7, w)
B8: (A8, w)
B9: (A9, w)
B10: (A10, w)
A11: A10 + 9.20000000000002E-4
A12: A11 + 9.20000000000002E-4
A13: A12 + 9.20000000000002E-4
B11: (A11, w)
B12: (A12, w)
B13: (A13, w)
C1 = -9
C2: C1 + 1
C3: C2 + 1
C4: C3 + 1
C5: C4 + 1
C6: C5 + 1
C7: C6 + 1
C8: C7 + 1
C9: C8 + 1
C10: C9 + 1
C11: C10 + 1
C12: C11 + 1
C13: C12 + 1
E1 = Vector(B1 + (2.0E-4, 0.4), B1 + (2.0E-4, 0.7))
E3 = Vector(B3 + (2.0E-4, 0.4), B3 + (2.0E-4, 0.7))
E13 = Vector(B13 + (2.0E-4, 0.4), B13 + (2.0E-4, 0.7))
E12 = Vector(B12 + (2.0E-4, 0.4), B12 + (2.0E-4, 0.7))
E11 = Vector(B11 + (2.0E-4, 0.4), B11 + (2.0E-4, 0.7))
E10 = Vector(B10 + (2.0E-4, 0.4), B10 + (2.0E-4, 0.7))
E9 = Vector(B9 + (2.0E-4, 0.4), B9 + (2.0E-4, 0.7))
E8 = Vector(B8 + (2.0E-4, 0.4), B8 + (2.0E-4, 0.7))
E7 = Vector(B7 + (2.0E-4, 0.4), B7 + (2.0E-4, 0.7))
E6 = Vector(B6 + (2.0E-4, 0.4), B6 + (2.0E-4, 0.7))
E5 = Vector(B5 + (2.0E-4, 0.4), B5 + (2.0E-4, 0.7))
E4 = Vector(B4 + (2.0E-4, 0.4), B4 + (2.0E-4, 0.7))
E2 = Vector(B2 + (2.0E-4, 0.4), B2 + (2.0E-4, 0.7))
text1: "f=2^{n/12}\cdot 440=2^{" + (LaTeX[n]) + "/12}\cdot 440=" + (LaTeX[f]) + ""
text2: "g(x)=" + (LaTeX[A]) + "\sin(" + (LaTeX[f]) + "\cdot 2 \pi x)"
D1 = Text("Do_4", B1)
D2 = Text("Do#", B2)
D3 = Text("Ré", B3)
D4 = Text("Ré#", B4)
D5 = Text("Mi", B5)
D6 = Text("Fa", B6)
D7 = Text("Fa#", B7)
D8 = Text("Sol", B8)
D9 = Text("Sol#", B9)
D10 = Text("La", B10)
D11 = Text("La#", B11)
D12 = Text("Si", B12)
D13 = Text("Do_5", B13)