新建 文本文档 (2).txt

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function r = mfcc1(s, fs) 
% MFCC 
% 
% Inputs: s  contains the signal to analize 
%         fs is the sampling rate of the signal 
% 
% Output: r contains the transformed signal 
% 
% 
%%%%%%%%%%%%%%%%%% 
% Mini-Project: An automatic speaker recognition system 
% 
% Responsible: Vladan Velisavljevic 
% Authors:     Christian Cornaz 
%              Urs Hunkeler 
 
m = 80; 
n = 160; 
l = length(s); 
 
nbFrame = floor((l - n) / m) + 1; 
 
for i = 1:n 
    for j = 1:nbFrame 
        M(i, j) = s(((j - 1) * m) + i); 
    end 
end 
 
h = hamming(n); 
 
M2 = diag(h) * M; 
 
for i = 1:nbFrame 
    frame(:,i) = fft(M2(:, i)); 
end