t (ms)

Amplitudes
relatives

2

1

Ecouter le son complexe

Ecouter son pur

Valeurs des phases à l'origine : 

Valeurs des amplitudes : 

Valeur de la fréquence du fondamental  (en Hertz) :

                 Modélisation :
Analyse harmonique des sons 

durée d'audition du son (en s)

(permet la modification des paramètres durant l'écoute pour voir l'influence)

Représentation temporelle :

1

2

f1 = 1378 (slider from 500 to 2000, step 1)
a1 = 1.5 (slider from 0 to 1.5, step 0.01)
φ1 = 3.141592653589793 (slider from -3.141592653589793 to 3.141592653589793, step 1)
φ2 = 3.141592653589793 (slider from -3.141592653589793 to 3.141592653589793, step 1)
a2 = 1.44 (slider from 0 to 1.5, step 0.01)
a3 = 1.49 (slider from 0 to 1.5, step 0.01)
φ3 = 2.858407346410207 (slider from -3.141592653589793 to 3.141592653589793, step 1)
O = Intersect(xAxis, yAxis)
C = (0.0022, 0)
u = Vector(O, C)
a4 = 0.81 (slider from 0 to 1.5, step 0.01)
φ4 = -1.1415926535897931 (slider from -3.141592653589793 to 3.141592653589793, step 1)
a5 = 0.27 (slider from 0 to 1.5, step 0.01)
φ5 = 2.858407346410207 (slider from -3.141592653589793 to 3.141592653589793, step 1)
A = (0, -2)
B = (0, 2)
v = Vector(A, B)
delta_t = 6 (slider from 1 to 10, step 1)
D = (0.003001785281731445, -0.0024127586049261574)
E = (0.003001785281731445, 3.0414727838371167)
F = (0.008802602271513213, -0.0024127586049261574)
y2(t) = If[0 ≤ t ≤ 0.002, (a2 * sin(((((2 * π) * 2) * f1) * t) + φ2))]
y1(t) = If[0 ≤ t ≤ 0.002, (a1 * sin((((2 * π) * f1) * t) + φ1))]
y3(t) = If[0 ≤ t ≤ 0.002, (a3 * sin(((((2 * π) * 3) * f1) * t) + φ3))]
y5(t) = If[0 ≤ t ≤ 0.002, (a5 * sin(((((2 * π) * 5) * f1) * t) + φ5))]
y4(t) = If[0 ≤ t ≤ 0.002, (a4 * sin(((((2 * π) * 4) * f1) * t) + φ4))]
ys(t) = y1(t) + y2(t) + y3(t) + y4(t) + y5(t)