can someone help me with this?

I'm trying to create an interface with the gui MATLAB 2015a, but I'm getting an error from the command window that " Undefined function or variable "frame". Error in ForTA>test_mfcc_Callback (line 304) rata_frame=mean(frames);

when i press push button "test mfcc", i can't get value for pre-emphasis to coefficen cepstrum. due to error in line 304

This my source code :

function varargout = ForTA(varargin)

% FORTA MATLAB code for ForTA.fig

% FORTA, by itself, creates a new FORTA or raises the existing

% singleton*.

%

% H = FORTA returns the handle to a new FORTA or the handle to

% the existing singleton*.

%

% FORTA('CALLBACK',hObject,eventData,handles,...) calls the local

% function named CALLBACK in FORTA.M with the given input arguments.

%

% FORTA('Property','Value',...) creates a new FORTA or raises the

% existing singleton*. Starting from the left, property value pairs are

% applied to the GUI before ForTA_OpeningFcn gets called. An

% unrecognized property name or invalid value makes property application

% stop. All inputs are passed to ForTA_OpeningFcn via varargin.

%

% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one

% instance to run (singleton)".

%

% See also: GUIDE, GUIDATA, GUIHANDLES

% edit1 the above text to modify the response to help ForTA

% Last Modified by GUIDE v2.5 05-Nov-2021 21:15:13

% Begin initialization code - DO NOT EDIT1

gui_Singleton = 1;

gui_State = struct('gui_Name', mfilename, ...

'gui_Singleton', gui_Singleton, ...

'gui_OpeningFcn', @ForTA_OpeningFcn, ...

'gui_OutputFcn', @ForTA_OutputFcn, ...

'gui_LayoutFcn', [] , ...

'gui_Callback', []);

if nargin && ischar(varargin{1})

gui_State.gui_Callback = str2func(varargin{1});

end

if nargout

[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});

else

gui_mainfcn(gui_State, varargin{:});

end

% End initialization code - DO NOT EDIT1

% --- Executes just before ForTA is made visible.

function ForTA_OpeningFcn(hObject, eventdata, handles, varargin)

% This function has no output args, see OutputFcn.

% hObject handle to figure

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% varargin command line arguments to ForTA (see VARARGIN)

% Choose default command line output for ForTA

handles.output = hObject;

% Update handles structure

guidata(hObject, handles);

% UIWAIT makes ForTA wait for user response (see UIRESUME)

% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.

function varargout = ForTA_OutputFcn(hObject, eventdata, handles)

% varargout cell array for returning output args (see VARARGOUT);

% hObject handle to figure

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure

varargout{1} = handles.output;

function edit1_Callback(hObject, eventdata, handles)

% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text

% str2double(get(hObject,'String')) returns contents of edit1 as a double

% --- Executes during object creation, after setting all properties.

function edit1_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

% --- Executes on button press in browse.

function browse_Callback(hObject, eventdata, handles)

% hObject handle to browse (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

[filename, pathname]=uigetfile ('*.wav*');

if ~isequal (filename, 0)

[y,Fs] = audioread(fullfile (pathname,filename));

a=0.97;

y2= filter ((1-a), 1, y);

time=(1:length(y))/Fs;

time1=(length(y))/Fs;

axes (handles.axe_original);

plot(time, y);

grid on

set (gca, 'unit', 'pixel');

axes(handles.axe_emphasis)

plot(time,y2);

grid on

set (gca, 'unit', 'pixel');

set (handles.edit1, 'string',filename)

set (handles.edit2,'string',Fs);

set (handles.edit3,'string',time1);

[y,Fs] = audioread(fullfile(pathname,filename));

else

return

end

handles.y2 = y2;

handles.y = y;

handles.Fs = Fs;

handles.time1 = time1;

guidata(hObject,handles)

function edit2_Callback(hObject, eventdata, handles)

% hObject handle to edit2 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit2 as text

% str2double(get(hObject,'String')) returns contents of edit2 as a double

% --- Executes during object creation, after setting all properties.

function edit2_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit2 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit3_Callback(hObject, eventdata, handles)

% hObject handle to edit3 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit3 as text

% str2double(get(hObject,'String')) returns contents of edit3 as a double

% --- Executes during object creation, after setting all properties.

function edit3_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit3 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit4_Callback(hObject, eventdata, handles)

% hObject handle to edit4 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit4 as text

% str2double(get(hObject,'String')) returns contents of edit4 as a double

% --- Executes during object creation, after setting all properties.

function edit4_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit4 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

% --- Executes on button press in Test.

function Test_Callback(hObject, eventdata, handles)

% hObject handle to Test (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% a = data input training data dari excel

a=xlsread ('C:\Users\waf_r\Download\refsuara\input.xlsx','Sheet1');

cepstrum=handles.cepstrum

time1=handles.time1;

c=[cepstrum;time1];

t(1:3)=1;t(4:6)=2;t(7:9)=3;t(10:12)=4;t(13:15)=5;t(16:18)=6;t(19:21)=7;t(22:24)=8;

net = newff (a', t, [10 5], {'logsig', 'logsig'},'trainlm');

%melihat bobot, bobot akan diberikan secara acak oleh matlab

bobotawal_Input = net.IW(1,1);

bobotawal_bias_input = net.b(1,1);

%parameter training

net.trainParam.show = 25;

net.trainParam.epochs = 5000; %jumlah maksimum epoch

net.trainParam.goal = 0.00000000001; %nilai minimum error

net.trainParam.min_grad=le-10;

net.trainParam.max_fail=1000000000000000000000000000000000000000000000000000000

net.trainParam.Ir=0.01; %nilai learning rate

%training jaringan

net = train (net,a',t);

save net.mat

%uji jaringan;

y=sim(net,c');

y=round(y);

switch y

case 1

set (handles.edithasil, 'String','Sa','Visible','on')

case 2

set (handles.edithasil, 'String','Sho','Visible','on')

case 3

set (handles.edithasil, 'String','Dza','Visible','on')

case 4

set (handles.edithasil, 'String','Za','Visible','on')

case 5

set (handles.edithasil, 'String','Qo','Visible','on')

case 6

set (handles.edithasil, 'String','Ka','Visible','on')

case 7

set (handles.edithasil, 'String','A','Visible','on')

case 8

set (handles.edithasil, 'String','^A','Visible','on')

end

%akurasi hasil training

X= round (sim(net,a'));

%hasil=(t,X);

n=length(t);

b=0;

%b=jumlah input yang memiliki nilai sama dengan target

for i=1:n

if X(i)==t(i)

b=b+1;

end

end

b;

ak=(b/n)*100;

disp (['accuracy JARINGAN SYARAF TIRUAN =',num2str(ak,'%2f'),'%'])

% --- Executes on button press in Play_ori.

function Play_ori_Callback(hObject, eventdata, handles)

% hObject handle to Play_ori (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

y=handles.y;

Fs=handles.Fs;

sound(y,Fs);

% --- Executes on button press in Play_emphasis.

function Play_emphasis_Callback(hObject, eventdata, handles)

% hObject handle to Play_emphasis (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

%framing1

y=handles.y;

a=0.97;

y2=filter((1-a),1,y);

Fs=handles.Fs;

sound(y2,Fs);

% --- Executes on button press in test_mfcc.

function test_mfcc_Callback(hObject, eventdata, handles)

% hObject handle to test_mfcc (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

y=handles.y;

Fs=handles.Fs;

a=0.97;

y2=filter((1-a),1,y);

n=512 %Number of FAST FOURIER TRANSFORM points

Tf=(length(y))/Fs; %Frame duration in seconds

N=Fs*Tf; %Number of samples per frame

fn=24; %Number of mel filters

l=length(y); %total number of sample speech

Ts=0.01; %Framse step in seconds

FrameStep=Fs*Ts; %Frame step in samples

noFrame=floor(1/FrameStep); %Maximum no of frames in speech sample

for i=1:noFrame

frame=y2((i-1)*FrameStep+1:(i-1)*FrameStep+N); %Holds individual frames

end

rata_frame=mean(frame);

set(handles.framing1,'string',rata_frame);

figure;

plot(frame(1,:));

handles.frame = frame;

handles.rata_frame = rata_frame;

%proses windowing

Fs=handles.Fs;

t=(1:512)'/Fs;

n=512;

f=n/t;

original=sin(2*pi*f*t)+0.2*randn(length(t),1);

windowed = original.*hamming(length(t));

rata_window = mean (windowed);

set (handles.windowing,'string',rata_window);

handles.rata_window = rata_window;

%FAST FOURIER TRANSFORM

Fs=handles.Fs;

a=0.97;

%y2=filter([1-a],1,y);

n=4096; %Power of 2 number of samples/length of FAST FOURIER TRANSFORM

%Get/Generate data

t=0:1/Fs:(n-1)/Fs; %n/fs sec sample

x=(1.3)*sin(2*pi*1500*t) ... % 1.5k Hz component

+ (1.7)*sin(2*pi*4000*(t-2)) ... %4.0k Hz component

+ (2.5)*randn(size(t));

%# Frequency Bins

bins = (0:1:n-1)*(Fs/n);

y = fft(x,n);

rata_fft = mean (y);

set(handles.fft, 'string', rata_fft);

handles.rata_fft = rata_fft;

%DISCRETE COSINE TRANSFORM

y=handles.y;

in_dct = f_fft_(y);

% Input for a DISCRETE COSINE TRANSFORM Transform

k=0 : ( length (in_dct)-1);

%limits for Variable K tends to N-1.

ex=exp (-j*k*pi/length(in_dct));

%Multiplaying Co-efficient.

in_dct=in_dct.*ex; %Point to point Multiplication.

in_dct=2*real(in_dct); % Extraction of Real-Part and Multiplaying with 2.

n=length(in_dct);

%Length of the input_dicrete cosine transform.

p=1:n; %To Get Even Symethric Output Waveform (DISCRETE COSINE TRANSFORM).

n=length (in_dct)/2;

%Length of the input_discrete cosine transform halved.

p=1:n; %samples halved

x(p)=in_dct(p);%Storing valves in another Variable.

x;

rata_dct=mean (x);

set(handles.dct,'string',rata_dct); %Cepstrallifter

Fs=handles.Fs;

y2=handles.y2;

y2 = y2 (:,1); %get the first channel

xmax = max (abs(y2)); %find the maximum value

y2=y2/xmax; %scale the sinal

%time vector generation

N= length (y2);

t= (0:N-1)/Fs;

% cepstral analysis

[C,q] = cepstrum (y2,Fs);

handles.C = C;

%plot of the signal

figure;

subplot (2,1,1)

plot (t,y2,'r')

xlim([0 max (t)])

ylim([-1.1*max(abs(y2)) 1.1*max(abs(y2))])

grid on

set (gca, 'FontName', 'Times New Roman', 'FontSize',12)

xlabel ('Time,s')

ylabel ('Normalized amplitude')

title ('The signal in the time domain')

%plot of the cepstrum

%1 ms minimum speech quefrency (1000 Hz) and 20 ms maximum speech qufrency(50 Hz)

subplot (2,1,2)

plot (q*1000, C, 'r');

grid on

xlim ([1 20])

set (gca, 'FontName', 'Times New Roman', 'FontSize', 12)

xlabel('Quefrency, ms')

ylabel('Amplitude')

title('Amplitude cepstrum of the signal(quefrencies from ms to 20 ms)')

%rata-rata nilai cepstrum

C=handles.C;

rata=mean(C);

handles.rata =rata;

set(handles.cepstrum, 'string',rata);

%handles.rata = rata;

function framing1_Callback(hObject, eventdata, handles)

% hObject handle to framing1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of framing1 as text

% str2double(get(hObject,'String')) returns contents of framing1 as a double

% --- Executes during object creation, after setting all properties.

function framing1_CreateFcn(hObject, eventdata, handles)

% hObject handle to framing1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function windowing_Callback(hObject, eventdata, handles)

% hObject handle to windowing (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of windowing as text

% str2double(get(hObject,'String')) returns contents of windowing as a double

% --- Executes during object creation, after setting all properties.

function windowing_CreateFcn(hObject, eventdata, handles)

% hObject handle to windowing (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit7_Callback(hObject, eventdata, handles)

% hObject handle to edit7 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit7 as text

% str2double(get(hObject,'String')) returns contents of edit7 as a double

% --- Executes during object creation, after setting all properties.

function edit7_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit7 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit8_Callback(hObject, eventdata, handles)

% hObject handle to edit8 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit8 as text

% str2double(get(hObject,'String')) returns contents of edit8 as a double

% --- Executes during object creation, after setting all properties.

function edit8_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit8 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

function edit9_Callback(hObject, eventdata, handles)

% hObject handle to edit9 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit9 as text

% str2double(get(hObject,'String')) returns contents of edit9 as a double

% --- Executes during object creation, after setting all properties.

function edit9_CreateFcn(hObject, eventdata, handles)

% hObject handle to edit9 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles empty - handles not created until after all CreateFcns called

% Hint: edit1 controls usually have a white background on Windows.

% See ISPC and COMPUTER.

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))

set(hObject,'BackgroundColor','white');

end

Answer 1

[Geoff Hayes]

@yusuf rahmat are you sure that this

 Undefined function or variable "frame". Error in ForTA>test_mfcc_Callback (line 304) rata_frame=mean(frames); 

is the error message? Because no where is there frame just frames. Looking at your code though

noFrame=floor(1/FrameStep); %Maximum no of frames in speech sample
for i=1:noFrame
    frame=y2((i-1)*FrameStep+1:(i-1)*FrameStep+N); %Holds individual frames
end
rata_frame=mean(frame);
set(handles.framing1,'string',rata_frame);
figure;
plot(frame(1,:));
handles.frame = frame;

what is the intent with the above? Note how frame is overwritten on each iteration of your loop, whereas the comment seems to indicate that it will "hold indivdual frames". I suspect that this is incorrect but am not sure what you intend to do here. Should frame be an array of frames? Was this what you had earlier? Perhaps something like

noFrame=floor(1/FrameStep); %Maximum no of frames in speech sample
frames = zeros(1,noFrame)
for i=1:noFrame
    frames(i) = y2((i-1)*FrameStep+1:(i-1)*FrameStep+N); %Holds individual frames
end
ata_frame=mean(frames);

Note also how you add the frame to the handles structure. If you don't do guidata(hObject, handles) then this updated structure won't be saved (and you will lose this frame field).