endpoint_watch.m

MFCC特征提取算法以及语音端点检测源码

function purewatch()

clear;
fclose('all');
frame_step=192;
temp=0;

% Fp_Speech=fopen('D:\test_kwspot\voice_converted\TargetFile\F_005.dat','r');
Fp_Speech=fopen('D:\PiPi_Demo\皮皮-男人8k拆分\8k_F_013.dat','r');
% notefile='D:\test_kwspot\lpccfea\vad\F_005vad.dat';
notefile='D:\PiPi_Demo\皮皮-男人8k-vad-auto\F_013.vad';
fidr=fopen(notefile,'rt');
str=fgetl(fidr);

fseek(Fp_Speech,198,'bof');
temp=fread(Fp_Speech,1,'int16');
Sentence_Num=temp;

frames_sent=0;

for iSentence_Num=0:Sentence_Num-1,

    frames=fscanf(fidr,'%3d  %3d', 2);
   % frames = frames/2;

    fseek(Fp_Speech,200,'bof');
    fseek(Fp_Speech,2*4*iSentence_Num,'cof');
    Off_Set=fread(Fp_Speech,1,'int32');
    SentenceLength_Byte=fread(Fp_Speech,1,'int32');
    fseek(Fp_Speech,Off_Set,'bof');
    
    VoiceData_Short=fread(Fp_Speech,SentenceLength_Byte/2,'int16');

    %  soundsc(VoiceData_Short,8000);
%     if(iSentence_Num < 79)
%         continue;
%     end
        
    
    figure(2);
    x = (1:length(VoiceData_Short))/frame_step;
    plot(x,VoiceData_Short);
    hold on
    plot(frames,2,'go');
    hold off
    string=int2str(iSentence_Num+1);
    string=strcat(string,' of  ');
    string1=int2str(Sentence_Num);
    string=strcat(string,string1);
    title(string);
    xlabel('start and end point','FontSize',12)
    pause
end

fclose('all');