MATLAB: How to change wavrecord to audiorecorder

audiorecorderwavrecord

clc;
clear all;
Fs=8000;    %sample rateXY
for k=1:25
  clear y1 y2 y3;
  display('Record cry');
  pause();
  x=wavrecord(Fs,Fs); %record sound
  t=0.04; %threshold
  j=1;
    for i=1:8000
        if(abs(x(i))>t) %signal>threshold
            y1(j)=x(i);
            j=j+1;
        end
    end
    y2=y1/(max(abs(y1)));   %y2:max absolute value of y1
    y3=[y2,zeros(1,3120-length(y2))];
    y=filter([1-0.9],1,y3');    %high pass filter to boost the high frequency components
    %frame blocking
    blocklen=240;  %30ms block
    overlap=80;
    block(1,:)=y(1:240);
    for i=1:18
        block(i+1,:)=y(i*160:(i*160+blocklen-1));
    end
    w=hamming(blocklen);
    for i=1:19
        a=xcorr((block(i,:).*w'),12);
        for j=1:12
            auto(j,:)=fliplr(a(j+1:j+12));
        end
        z=fliplr(a(1:12));
        alpha=pinv(auto)*z';
        lpc(:,i)=alpha;
    end
    wavplay(x,Fs);
    X(k,:)=reshape(lpc,1,228);
    Y(k,:)=input('Enter no.(1-Eairh, 2-Eh, 3-Heh, 4-Neh, 5-Owh)');
end
save('lpcdata.mat','X','Y');
Hi, can someone help me. I'm newbie in Matlab. How to change the usage of wavrecord to audiorecorder in the codes above?

Best Answer

Poison - just replace your line of code
 x=wavrecord(Fs,Fs);
with the following
 % create the recorder
 recorder=audiorecorder(Fs,8,1);
 % record one second of data
 record(recorder,1);
 % get the samples
 x = getaudiodata(recorder);
And you should be able to continue as before. See audio recorder for details.
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