proba

%Reading the file
[y, fs] = audioread('bogis.wav');

%Creating the vector according to which delay is varied
a= 0.01;
b= 0.4;
low_n = round(a*fs);
high_n = round(b*fs);

delay_step = 2 /(1/fs);
n = low_n;
no_points = length(y(:,1));
out_wav(:,1) = zeros(1,no_points);

for i=1:no_points
    if(i<=2*fs)
       delay(i) = (((a*b)/2)*i) + a*fs;
    elseif(i>2*fs && i<=4*fs)
       delay(i) = (-(a-b)/2)*(i-2*fs)+b*fs;
    end
end

%     n = i-delay;
%     if n>0
%         out_wav(i) = y(i)+y(n);
%     else
%         out_wav(i) = y(i);
%     end
% end

p = audioplayer(out_wav,fs);
play(p);
plot(out_wav);
pause;