viena programa apie FFT ir Hamming langą amoothin ...

[farhadtehrani1]

viena programa apie FFT ir Hamming langą amoothin bangų failas ...[x, FS] = wavread ('1. wav ');
x (17824:18000) = 0
čia k = 1:90
y = x ((200 * K-199): 200 * K)
fff = FFT (y, 1024)
fff (129:897) = 0
IFF = ifft (fff, 1024)
suma (200 * k-199: 200 * k, 1) = iff (1:200,1)
pabaigoje

čia k = 1:180
N ((100 * K-99): 100 * k, 1) = 0
m = (1: (18100-100 * K-200), 1)
ham1 = [n; kumpis; m]
Y = X * ham1
y = y (100 * k 1: (100 * K 200))
fff = FFT (y, 1024)
fff (129:897) = 0
IFF = ifft (fff, 1024)
iff = iff (1:200)
suma ((100 * k 1): (100 * K 200)) = sum ((100 * k 1): (100 * K 200)) iff (1:200)suma (1:18100,1) = 0
[x, FS] = wavread ('1. wav ');
o (1:100,1) = 0
x = [o; x]
x (17824:18100) = 0