How to plot readed audio files in multiple plots or subplots by MATLAB

i want to select one audio folder then i want to plot them all in different axis or subplots. Kindly help me to solve this.Kindly refer below code

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);

Answer 1

[Dave B]

It looks like you're as far as getting the filenames, but need to read the data and make the plots.

audioread works well for loading the audio data, you have some commented out code with audioread above, I'm not sure if you ran into trouble. I think it's fine to store them all in a cell array first, but I didn't do that below for simplicity.

I'd suggest tiledlayout/nexttile over subplot. Here I use the 'flow' style of tiledlayout which means MATLAB will choose a grid shape for your multiple axes.

% tiledlayout flow means you can have as many 'tiles' (subplots) as you like

tiledlayout('flow')
for k = 1 : length(theFiles)
    baseFileName = theFiles(k).name;
    fullFileName = fullfile(theFiles(k).folder, baseFileName);
    
    % read the file with audioread
    [y,fs]=audioread(fullFileName);
    
    % this defines a time variable for your x axis:
    t = linspace(0, height(y)/fs, height(y));
    
    % this adds another tile (axes) to your layout 
    nexttile
    
    % plot it
    plot(t,y)
    
    % label it
    xlabel('Time (s)')
    ylabel('Amplitude')
end

[Deepu S S]

[Deepu S S]

when i select other menu this window is still appear. How to fix this problem in ui??

please help

[Dave B]

I'm not sure I understand the question, is it that you want to get rid of the menu and toolbar at the top? If so you can do:

set(gcf,'MenuBar','none')

[Deepu S S]

[Deepu S S]

please refer above picture. when i select mono viewe call back but the multi wave viewe is current present there,how to fix this problem

function demo_cdhd_Callback(hObject, eventdata, handles)

% hObject handle to demo_cdhd (see GCBO)

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

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

% 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';

tiledlayout('flow')

for k = 1 : length(theFiles)

baseFileName = theFiles(k).name;

fullFileName = fullfile(theFiles(k).folder, baseFileName);

% read the file with audioread

[y,fs]=audioread(fullFileName);

% this defines a time variable for your x axis:

t = linspace(0, height(y)/fs, height(y));

% this adds another tile (axes) to your layout

nexttile

% plot it

plot(t,y)

% label it

xlabel('Time (s)')

ylabel('Amplitude')

set(gcf,'MenuBar','none')

end

end