Speech Recognition in MATLAB?

I have written a code that recognizes specific words.

Basically , if I upload an audio file and give some keyword, I want the time stamps where that keyword has been played in the audio file from MATLAB.

Any heads up on that ?

function speechrecognition(filename)
voice=wavread(filename);
x=voice;
x=x';
x=x(1,:);
x=x';
y1=wavread('one.wav');
y1=y1';
y1=y1(1,:);
y1=y1';
z1=xcorr(x,y1);
m1=max(z1);
l1=length(z1);
t1=-((l1-1)/2):1:((l1-1)/2);
t1=t1';
%subplot(3,2,1);
plot(t1,z1);
y2=wavread('two.wav');
y2=y2';
y2=y2(1,:);
y2=y2';
z2=xcorr(x,y2);
m2=max(z2);
l2=length(z2);
t2=-((l2-1)/2):1:((l2-1)/2);
t2=t2';
%subplot(3,2,2);

figure
plot(t2,z2);
y3=wavread('three.wav');
y3=y3';
y3=y3(1,:);
y3=y3';
z3=xcorr(x,y3);
m3=max(z3);
l3=length(z3);
t3=-((l3-1)/2):1:((l3-1)/2);
t3=t3';
%subplot(3,2,3);
figure
plot(t3,z3);
y4=wavread('four.wav');
y4=y4';
y4=y4(1,:);
y4=y4';
z4=xcorr(x,y4);
m4=max(z4);
l4=length(z4);
t4=-((l4-1)/2):1:((l4-1)/2);
t4=t4';
%subplot(3,2,4);

figure
plot(t4,z4);
y5=wavread('five.wav');
y5=y5';
y5=y5(1,:);
y5=y5';
z5=xcorr(x,y5);
m5=max(z5);
l5=length(z5);
t5=-((l5-1)/2):1:((l5-1)/2);
t5=t5';
%subplot(3,2,5);
figure
plot(t5,z5);
m6=300;
a=[m1 m2 m3 m4 m5 m6];
m=max(a);
h=wavread('allow.wav');
if m<=m1
    soundsc(wavread('one.wav'),50000)
        soundsc(h,50000)
elseif m<=m2
    soundsc(wavread('two.wav'),50000)
        soundsc(h,50000)
elseif m<=m3
    soundsc(wavread('three.wav'),50000)
        soundsc(h,50000)
elseif m<=m4
    soundsc(wavread('four.wav'),50000)
        soundsc(h,50000)
elseif m<m5
    soundsc(wavread('five.wav'),50000)
        soundsc(h,50000)
else
   {soundsc(wavread('denied.wav'),50000)}

end

[Alex Shubin]

Hey, I have a same problem! Have you finished your script? how it works?

[Preethi]

hi,

Are you able to recognize few words or none?

[KSSV]

How about attaching the input files also..so that we can try?

[Alex Shubin]

Basically my task was find timestamps of one sound in long track. for example: you want separate a track by some noise or music intro you need peek that intro and script must provide you a timestamps where that sound located in track (it can be repeated a many times)

here is my current code:

 function [] = untitled(inputArg2,inputArg1)    
    [x, Fs] = audioread(inputArg1);
    [x1,Fs1] = audioread(inputArg2);
    x=x';
    x=x(1,:);
    x=x';
    x1=x1';
    x1=x1(1,:);
    x1=x1';
    tt1 = (0:length(x)-1)/Fs;
    tt2 = (0:length(x1)-1)/Fs1;
    Y = fft(x);
    Z = fft(x1);
    subplot(3,1,1), plot(tt1,x);
    subplot(3,1,2), plot(tt2,x1);
    [C1,lag1] = xcorr(abs(Y),abs(Z) );
    subplot(3,1,3), plot(lag1/Fs,C1);
end