Analyse segment d'attaque et segment de silence d'un fichier wave via fft
Bonjour,
Mon but est de sortir les segments d'attaque et de silence via la fft (Fast Fourier Transform)
Mon code donne un tableau fft mais étant nul en math je ne sait pas comment interpréter ces données.
tableau fft :
Code:
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3.47243095e+00 -7.15322268e+00j 7.48467881e-01 +8.11657099e-01j
4.44514272e-01 -4.78837943e-01j 4.28537159e+00 -4.61704948e+00j
-6.15863923e-01 +2.37019892e+00j -3.56799257e+00 -8.76233268e-01j
8.79629762e+00 -1.61800904e+00j 1.88656134e+00 +1.87760811e+00j
1.90360808e-02 -9.46969941e-01j 4.45351752e+00 +3.69556646e+00j
1.23506183e+00 -4.02728643e-01j 7.55720355e-01 -6.29721631e+00j
3.44971069e+00 +2.25886964e+00j -7.74342699e-01 +1.97155182e+00j
1.19407661e+00 +1.44506825e+07j 1.86300940e+00 +6.12297237e-01j
-5.75498450e-01 +4.06493179e+00j 3.75134099e+00 -4.74717309e+00j
3.15243658e+00 +3.50781866e+00j -2.65949595e+00 +4.47830713e-01j
5.04967729e+00 -3.82427556e+00j 3.15250042e+00 +5.28945903e+00j] |
ce tableau est stocker via scipy.fft.fft(data)
je sais en faire un spectre sonore mais je ne comprend pas comment analyser pas a pas (dans le temps) la variation des fréquences sonore.
Merci pour vos lumières
