ens.py

Created on December 21, 2023

425 Bytes

Calculer la taille d'un
fichier numérisé :
  
N = fe(freq) x Q(bits/8 
x n(mono/stér) x Δt(en s)

1Mo = 10^6

Taux de compression :

T = (1 - taille compréssé
/ taille fichier initial)

Critère de Shanon :
  
Le Signal analogique 
doit avoir une fréquence
d'échantillonage au moin
2x supérieur a celle du 
son  

fe >= 2xfmax

I= P/S 
surface : S = 4 x pi x r2

Pour trouver L 

L= 10 x log I/Io-> 10p-12

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