基于DWT和MFCC的说话人识别系统

该说话人识别系统通过提取语音信号的MFCC特征参数，并由DWT算法计算得测试样本与各模板样本之间的距离，由最近临准则，完成说话人识别。优点是算法简单，无需大量样本，缺点为需保证说话人说话的内容一致。

function dist = dtw（ tr ）
n=size（t1）;
m=size（r1）;
%%帧匹配距离距阵
d=zeros（nm）;
 
for i=1:n
    for j=1:m
        d（ij）=sum（（t（i:）-r（j:））.^2）;
    end
end
 
%%累积距离矩阵
D=ones（nm）*realmax;
D（11）=d（11）;
%%动态规划
for i=2:n
    for j=1:m
        D1=D（i-1j）;
        if j>1
            D2=D（i-1j-1）;
        else
            D2=realmax;
        end
       
        if j>2
            D3=D（i-1j-2）;
        else
            D3=realmax;
        end
        D（ij）=d（ij）+min（[D1D2D3]）;
    end
end
dist=D（nm）;
end

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件      13310  2014-07-09 20:28  voicebox\activlev.m

     文件       8389  2014-08-06 02:25  voicebox\activlevg.m

     文件       1793  2014-01-16 15:43  voicebox\atan2sc.m

     文件       2112  2014-01-16 15:43  voicebox\axisenlarge.m

     文件       4728  2014-04-25 14:51  voicebox\bark2frq.m

     文件       1705  2014-04-25 14:51  voicebox\berk2prob.m

     文件       3305  2014-01-16 15:43  voicebox\bitsprec.m

     文件       2469  2014-01-16 15:43  voicebox\cblabel.m

     文件       2013  2014-01-16 15:43  voicebox\ccwarpf.m

     文件       2046  2014-01-16 15:43  voicebox\cent2frq.m

     文件       2131  2014-01-16 15:43  voicebox\cep2pow.m

     文件       2239  2014-01-16 15:43  voicebox\choosenk.m

     文件       1603  2014-01-16 15:43  voicebox\choosrnk.m

     文件      14140  2015-07-16 22:42  voicebox\Contents.m

     文件       3975  2014-01-16 15:43  voicebox\correlogram.m

     文件       3819  2014-01-16 15:43  voicebox\distchar.m

     文件       3422  2014-01-16 15:43  voicebox\distchpf.m

     文件       3688  2014-01-16 15:43  voicebox\disteusq.m

     文件       4641  2014-01-16 15:43  voicebox\distisar.m

     文件       3736  2014-01-16 15:43  voicebox\distispf.m

     文件       4170  2014-01-16 15:43  voicebox\distitar.m

     文件       3601  2014-01-16 15:43  voicebox\distitpf.m

     文件       1982  2014-01-16 15:43  voicebox\ditherq.m

     文件       2746  2014-01-16 15:43  voicebox\dlyapsq.m

     文件       3479  2014-01-16 15:43  voicebox\dualdiag.m

     文件      26494  2014-01-16 15:43  voicebox\dypsa.m

     文件       5311  2014-07-24 16:49  voicebox\enframe.m

     文件       3906  2014-01-16 15:43  voicebox\entropy.m

     文件       3430  2015-03-02 00:02  voicebox\erb2frq.m

     文件       7306  2014-01-16 15:43  voicebox\estnoiseg.m

............此处省略472个文件信息