MFCC Speaker verification system

it gives me error, could some one help me in my mfcc speaker verfication system code:

here it is my code:

%recorder = auidorecorder(16000,8,2);
            Firstrecorder = audiorecorder;
            msgbox("Register Your Voice");
            recordblocking(Firstrecorder,3);
            msgbox("Recording STOP");
            assignin("base","Firstrecorder",Firstrecorder);


Fs = 24000;
         Fn = Fs/2;
         wp = 1000/Fn;
         ws = 1010/Fn;
         rp =1;
         rs = 150;
         [n,ws] = cheb2ord(wp,ws,rp,rs);
         [z,p,k] = cheby2(n,rs,ws,'high');
         [soslp,glp] = zp2sos(z,p,k);
           
           
            % Save First user Voice in the DataBase:
           Firstrecorder = evalin("base","Firstrecorder");
           y = getaudiodata(Firstrecorder);
           fs = Firstrecorder.SampleRate;
           %sound(y,fs);                               %play(recorder);
           filename = "A.wav"
           audiowrite(filename,y,fs);       
        
           % Save Second user Voice in the DataBase:
           Secondrecorder = evalin("base","Secondrecorder");
           y3 = getaudiodata(Secondrecorder);
           fs3 = Secondrecorder.SampleRate;
           %sound(y3,fs3);                               %play(recorder);
           filename3 = "C.wav"
           audiowrite(filename3,y3,fs3);
           
           
           [AA,F] = audioread("A.wav");
          SS = [1*F,F*6];
          [BB,F] = audioread("A.wav",SS);
          zizo =mfcc(BB(:,1),F);
           
            [AA,F] =audioread('A.wav');
            SS = [1*F,F*6];
            [BB,F] = audioread('A.wav',SS);
           zizo = mfcc (BB(:,1),F);
            
            [AA,F] =audioread('C.wav');
             SS = [1*F,F*6];
             [BB,F] = audioread('C.wav',SS);
            zizo2 = mfcc (BB(:,1),F);
                       coeffs = {zizo;zizo2};
            [file, path] = uigetfile('A.wav','select an sound file', 'A.wav');
            [y,F] =audioread(file);
            SS = [1*F,F*6];
            [BB,F] = audioread(file,SS); 
           zizo3 = mfcc (BB(:,1),F);
            set(handles.text2,'String',file);
            sound(y,F);
            for time = 1:10               set(handles.text5,'String',file);
                pause(1.2);
            end
          
         
           
        end

Answer 1

[Walter Roberson]

The code you posted has too many end statements.

It looks to me as if the code is intended to be used together with a GUI, and that possibly you removed a "function" declaration, so possibly your original code does not have too many end statements.

           Secondrecorder = evalin("base","Secondrecorder");

Secondrecorder does not exist in the base workspace. You created Firstrecorder there but not Secondrecorder .

There is probably not much advantage in storing the audiorecorder objects in the base workspace: just extract the data and sampling frequency and (if you must) store that. You can use the same audiorecorder object to record the second voice.

[Zeiad Abdelhmaid]

Hi Mr. @Walter Roberson ,

sir this my GUI, the code that i send is for save butoon as after i record my click on the first and second butoon i can click on save butoon to save and extract them,, My main probem is in mfcc extraxct i wnat to know what is the error in the exctract code, or if you may tell me a sutiable mfcc code ??

by the way this the code of the records buttons:

[Walter Roberson]

If you have code like that,then you should not have

            Firstrecorder = audiorecorder;
            msgbox("Register Your Voice");
            recordblocking(Firstrecorder,3);
            msgbox("Recording STOP");
            assignin("base","Firstrecorder",Firstrecorder);

in this code: you should only have it in the code for the callback for the first button.

You already have the sound values and sample rates in memory after you getaudiodata : there is no need to write them to a file and read from the file. It does not hurt to write them to a file if you want to examine the file later for debugging purposes, but there is no reason for your code to read back from the files in those cases.

          [AA,F] = audioread("A.wav");
          SS = [1*F,F*6];
          [BB,F] = audioread("A.wav",SS);

Why do you re-read the file? Why not just say that

BB = AA(1:min(end,F*6),:) 

?

          zizo =mfcc(BB(:,1),F);
          
           [AA,F] =audioread('A.wav');
            SS = [1*F,F*6];
            [BB,F] = audioread('A.wav',SS);
           zizo = mfcc (BB(:,1),F);

Why do that all again? You just did that 5 lines further up.

  [file, path] = uigetfile('A.wav','select an sound file', 'A.wav');

Why not menu() asking which one to select? Or is it deliberate that you want the user to be able to choose a different file completely?

There is nothing obviously wrong with the way you calculate the mfcc coefficients... you just do not do anything with the coefficients after you compute them!

Answer 2

[saeed ahmad]

Hello brother, I am making a similar system. Can you write me I need some help. [e-mail]