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資源簡(jiǎn)介

采用廣義旁瓣抵消(GSC)自適應(yīng)波束形成方法實(shí)現(xiàn)時(shí)域和頻域?yàn)V波,采用LMS自適應(yīng)算法,最終實(shí)現(xiàn)語(yǔ)音增強(qiáng)。(文件中包含純凈語(yǔ)音及不同信噪比的帶噪語(yǔ)音)

資源截圖

代碼片段和文件信息

%?
clear;
clc

M=4;???%?麥克風(fēng)數(shù)目

clean?=?wavread(‘clean.wav‘);
x1?=?wavread(‘noisy0.wav‘);
x2?=?wavread(‘noisy10.wav‘);
x3?=?wavread(‘noisy15.wav‘);
x4?=?wavread(‘noisy20.wav‘);
%?x5?=?wavread(‘noisy25.wav‘);
Len?=?length(clean);
mic1?=?x1(1:Len);
mic2?=?x2(1:Len);
mic3?=?x3(1:Len);
mic4?=?x4(1:Len);
%?mic5?=?x5(1:Len);
x?=?[mic1‘;mic2‘;mic3‘;mic4‘];%;mic5‘
FBFout=sum(x)/M;

B?=?[1?-1?0?0?
?????0?1?-1?0?
?????0?0?1?1?];
Bout?=?B*x;
x1?=?Bout(1:)‘;
x2?=?Bout(2:)‘;
x3?=?Bout(3:)‘;
%?x4?=?Bout(4:)‘;

y1?=?zeros(1Len);
y2?=?y1;
y3?=?y1;
y4?=?y1;
MCout?=?y1;
N?=?64;
h1?=?zeros(1N);
h2?=?h1;
h3?=?h1;?
h4?=?h1;
GSCout?=?zeros(1Len);
u?=?0.0002;
weight?=?[];
for?i=1:fix(Len/N)-1
????X1?=?fft(x1((i-1)*N+1:(i+1)*N));
????H1?=?fft([h1zeros(1N)]);
?

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件???????36996??2010-04-06?14:39??clean.wav
?????文件????????1919??2010-06-27?10:52??FGSC.m
?????文件???????36996??2010-04-06?14:44??noisy0.wav
?????文件???????36996??2010-04-06?14:44??noisy10.wav
?????文件???????36996??2010-04-06?14:41??noisy15.wav
?????文件???????36996??2010-04-06?14:40??noisy20.wav
?????文件???????36996??2010-06-23?09:17??noisy5.wav
?????文件?????????755??2010-06-11?08:43??shiyuchengxu.m

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