i want to plot readed audio files

function CHD_Multiview_Callback(hObject, eventdata, handles)

set(handles.chdprevious, 'Visible','on')
set(handles.chdnext,'visible','on')
set(handles.chdtext,'visible','on')
set(handles.chdpanel,'visible','on')

guidata(hObject, handles);
disp('Entered');
guidata(hObject, handles);
folder_name = uigetdir('','Select src data Directory'); 
if isequal(folder_name,0)
   disp('Directory Selected');
else
%     set(handles.EEGFilename,'string','Wait Loading File.......');
disp(['You have  selected  ', fullfile(folder_name)]);
disp('CHD Audio file processing wait')
handles.srcFolder= fullfile(folder_name);
% set(handles.edDirName,'string',handles.srcFolder);
end

guidata(hObject, handles);


% Specify the folder where the files live.
k='';
myFolder = 'F:\audio';
folder ='F:\';
%     AudioArray{k} = audioread(fullfile(folder));
%     maxaudio(k) = max(AudioArray{k});
% myFolder = 'F:\audio';
% Check to make sure that folder actually exists.  Warn user if it doesn't.
if ~isfolder(myFolder)
    errorMessage = sprintf('Error: The following folder does not exist:\n%s\nPlease specify a new folder.', myFolder);
    uiwait(warndlg(errorMessage));
    myFolder = uigetdir(); % Ask for a new one.
    if myFolder == 0
         % User clicked Cancel
         return;
    end
end
% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '**/*.wav'); % Change to whatever pattern you need.
theFiles = dir(filePattern);
for k = 1 : length(theFiles)
    baseFileName = theFiles(k).name;
    fullFileName = fullfile(theFiles(k).folder, baseFileName);
    fprintf(1, 'Now reading %s\n', fullFileName);
    % Now do whatever you want with this file name,
    % such as reading it in as an image array with imread()
    AudioArray = audioread(fullFileName);
     [y,fs] = audioread(fullFileName);
     subplot = 'theFiles';
 

help subplot

Answer 1

[Sulaymon Eshkabilov]

Maybe you had better employ just one plot() and hold it to plot all imported data from audio files, e.g.:

plot(y), hold all  % That will be held and all of the imported audio data will be plotted in a different line color

[Walter Roberson]

I would modify that slightly:

[~, basename] = fileparts(fullFileName);
t = (0:size(y,1)-1) / fs;
plot(t, y, 'DisplayName', basename);
hold on

and then after the loop,

legend show

[Deepu S S]

Please help. i want to plot these readed audio file in a axis or in mulitiple axis.please help i'm new to MATLAB

function CHD_Multiview_Callback(hObject, eventdata, handles)

set(handles.chdprevious, 'Visible','on')
set(handles.chdnext,'visible','on')
set(handles.chdtext,'visible','on')
set(handles.chdpanel,'visible','off')

guidata(hObject, handles);
disp('Entered');
guidata(hObject, handles);
folder_name = uigetdir('','Select src data Directory'); 
if isequal(folder_name,0)
   disp('Directory Selected');
else
%     set(handles.EEGFilename,'string','Wait Loading File.......');
disp(['You have  selected  ', fullfile(folder_name)]);
disp('CHD Audio file processing wait')
handles.srcFolder= fullfile(folder_name);
% set(handles.edDirName,'string',handles.srcFolder);
end

guidata(hObject, handles);


% Specify the folder where the files live.
k='';
myFolder = 'F:\audio';
folder ='F:\';
%     AudioArray{k} = audioread(fullfile(folder));
%     maxaudio(k) = max(AudioArray{k});
% myFolder = 'F:\audio';
% Check to make sure that folder actually exists.  Warn user if it doesn't.
if ~isfolder(myFolder)
    errorMessage = sprintf('Error: The following folder does not exist:\n%s\nPlease specify a new folder.', myFolder);
    uiwait(warndlg(errorMessage));
    myFolder = uigetdir(); % Ask for a new one.
    if myFolder == 0
         % User clicked Cancel
         return;
    end
end

[Walter Roberson]

function CHD_Multiview_Callback(hObject, eventdata, handles)

set(handles.chdprevious, 'Visible','on')
set(handles.chdnext,'visible','on')
set(handles.chdtext,'visible','on')
set(handles.chdpanel,'visible','off')

folder_name = uigetdir('','Select src data Directory'); 
if ~ischar(folder_name)
   disp('No directory Selected');
   return
end

disp(['You have  selected  ', folder_name]);
disp('CHD Audio file processing wait')
handles.srcFolder = folder_name;

dinfo = dir(fullfile(folder_name, '*.wav'));
filenames = fullfile(folder_name, {dinfo.name});
nfiles = length(filenames);

AudioArray = cell(nfiles, 1);
FsArray = zeros(nfiles, 1);
maxaudio = zeros(nfiles, 1);

for k = 1 : nfiles
   thisfile = filenames{k};
   [~, basename] = fileparts(thisfile);
   [thisaudio, thisfs] = audioread(thisfile);
   AudioArray{k} = thisaudio;
   FsArray(k) = thisfs;
   maxaudio(k) = max(thisaudio(:));
   t = (0:size(thisaudio,1)) / thisfs;
   plot(t, thisaudio, 'DisplayName', basename);
   hold on
end
hold off
xlim auto; ylim auto;
xlabel('time (s)');
legend show

handles.AudioArray = AudioArray;
handles.FsArray = FsArray;
handles.maxaudio = maxaudio;

guidata(hObject, handles);

[Deepu S S]

i run above problem but it shows error.kindly please refer below error.please help me

You have selected F:\d_1Heart Audio Signal.mp3

CHD Audio file processing wait

Error using plot

Vectors must be the same length.

Error in EEG_SCT>CHD_Multiview_Callback (line 10470)

plot(t, thisaudio, 'DisplayName', basename);

Error in gui_mainfcn (line 96)

feval(varargin{:});

Error in EEG_SCT (line 37)

gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)EEG_SCT('CHD_Multiview_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating Menu Callback.

[Walter Roberson]

   t = (0:size(thisaudio,1)-1) / thisfs;

[Deepu S S]

sir now i run the code but still geting error please refer below code and error commend

   function CHD_Multiview_Callback(hObject, eventdata, handles)


set(handles.chdprevious, 'Visible','on')
set(handles.chdnext,'visible','on')
set(handles.chdtext,'visible','on')
set(handles.chdpanel,'visible','off')

folder_name = uigetdir('','Select src data Directory'); 
if ~ischar(folder_name)
   disp('No directory Selected');
   return
end

disp(['You have  selected  ', folder_name]);
disp('CHD Audio file processing wait')
handles.srcFolder = folder_name;

dinfo = dir(fullfile(folder_name, '*.wav'));
filenames = fullfile(folder_name, {dinfo.name});
nfiles = length(filenames);

AudioArray = cell(nfiles, 1);
FsArray = zeros(nfiles, 1);
maxaudio = zeros(nfiles, 1);

for k = 1 : nfiles
   thisfile = filenames{k};
   [~, basename] = fileparts(thisfile);
   [thisaudio, thisfs] = audioread(thisfile);
   AudioArray{k} = thisaudio;
   FsArray(k) = thisfs;
   maxaudio(k) = max(thisaudio(:));
   t = (0:size(thisaudio,1)) / thisfs;
   plot(t, thisaudio, 'DisplayName', basename);
   hold on
end
hold off
xlim auto; ylim auto;
xlabel('time (s)');
legend show

handles.AudioArray = AudioArray;
handles.FsArray = FsArray;
handles.maxaudio = maxaudio;
   t = (0:size(thisaudio,1)-1) / thisfs;
guidata(hObject, handles);

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%ERROR

You have selected F:\chd

CHD Audio file processing wait

Error using plot

Vectors must be the same length.

Error in EEG_SCT>CHD_Multiview_Callback (line 10471)

plot(t, thisaudio, 'DisplayName', basename);

Error in gui_mainfcn (line 96)

feval(varargin{:});

Error in EEG_SCT (line 37)

gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)EEG_SCT('CHD_Multiview_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating Menu Callback.

[Walter Roberson]

Put a breakpoint at the plot call and show us size(t) and size(thisaudio)

[Walter Roberson]

You did not change

   t = (0:size(thisaudio,1)) / thisfs;

to

   t = (0:size(thisaudio,1)-1) / thisfs;

like I said to do yesterday.

[Deepu S S]

Now its work thank you

Answer 2

[Deepu S S]

[Deepu S S]

thank you