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目录
📋1 概述
📝2 运行结果
📃3 参考文献
📋4 Matlab代码实现
📋1 概述
性别鉴定旨在通过对输入的语音信号进行分析处理,判定一个语音处理系统中说话人的性别,它是说话人识别和语音识别的一个重要研究课题。准确的性别鉴定不仅对于提高说话人识别的精度有重要意义,在非特定人连续语音识别的前端加入性别鉴定,然后利用男女两个语音模型对输入语音进行语音识别,还可以在较大程度上提高语音识别的准确度。
📝2 运行结果
部分代码：
%% Digital Signal Processing Project- Gender Identification and Classification
%% Program:
%Feature Matrix
datamat=zeros(11,4); % data matrix to store features
for k=1:11
filename=['s' num2str(k) '.wav'];
[my2,fs] = audioread(filename);%Reading the files
[fundamental_freq,zero_crossing,short_energy]=Charac_features(my2,fs);%Finding features
%Storing features in the data matrix
datamat(k,1)=k;
datamat(k,2)=fundamental_freq;
datamat(k,3)=zero_crossing;
datamat(k,4)=short_energy;
end
%% Feature Extraction and Classification
fundamental_freq_level=135;%Manually fixing the value of the fundamental freq
zero_crossing_level=12;%Manually fixing the value of the zero crossing value
short_energy_level=0.5;%Manually fixing the value of the Short energy value
%Reading a file and getting the fundamental,zero crossing, short energy
%values
[my2,fs] = audioread('s2.wav');
figure;plot(my2);title('Test Signal');
xlabel('Index');ylabel('Amplitude');
[freq,zero_cross,short_ene]=Charac_features(my2,fs);