Ahmad asked . 2024-03-18

How can I ensure that when I click the play button more than once in my MATLAB GUI

How can I ensure that when I click the play button more than once in my MATLAB GUI, the audio is played only once, regardless of how many times I press the play button?

I am making an audio equalizer in MATLAB guide. When I press the 'play' button more than once, it plays the audio signal as many times as I've pressed the button. What I want is that when I press the play button more than once, it should only play the audio signal once.
 
The code for play button is given below:
 
%      PLAY BUTTON
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
audiofile = handles.fullpathname; % the input audio file is stored in "audiofile" variable.
[x, fs] = audioread(audiofile);
guidata(hObject, handles);
handles.CP=1;
% Storing the value of slider in respective variables.
slider_1 = get(handles.slider1, 'Value');
slider_2 = get(handles.slider2, 'Value');
slider_3 = get(handles.slider3, 'Value');
slider_4 = get(handles.slider4, 'Value');
slider_6 = get(handles.slider6, 'Value');
% Applying different filters on these variables.
filter1 = BPF63(x, slider_1);
filter2 = BPF250(x, slider_2);
filter3 = BPF1000(x, slider_3);
filter4 = BPF4000(x, slider_4);
filter6 = BPF16000(x, slider_6);
%Adding all these variables to make the new signal.
total = filter1 + filter2 + filter3 + filter4 + filter6;
sound(total,fs);
%Plotting the signals
plot(handles.axes1, 1:length(x),x);
grid on;
fourier = fft(x);
plot(handles.axes3, 1:length(fourier), abs(fourier));
grid on;
plot(handles.axes4, 1:length(total), total);
grid on;
total_fourier = fft(total);
plot(handles.axes5, 1:length(total_fourier), abs(total_fourier))
grid on;
end

 

matlab gui , guide , matlab , Signal Processing , Audio Toolbox

Expert Answer

Neeta Dsouza answered . 2024-05-10 04:23:00

I am guessing this is done through the app designer?
 
A simple solution to this would be to disable the button after it is pressed, use the pause() function to stop any further matlab executions before the audiofile has played in its entierty, and then enabling it again.
 
A version of a matlab app doing this could look like
 
 
        % Button pushed function: PlayButton
        function PlayButtonPushed(app, event)
            %Disable the button
            set(app.PlayButton,'Enable','off');
            
            %Read and play the audio
            [x,fs] = audioread(app.FilePathEditField.Value);
            sound(x,fs);
            
            %you can add any of your plots etc either before 
            %or after the pause depending on desired effect
            
            %Wait for audio to finish
            pause(length(x)/fs); 
                                    
            %Re-enable the button
            set(app.PlayButton,'Enable','on')
        end

 


Not satisfied with the answer ?? ASK NOW

Frequently Asked Questions

MATLAB offers tools for real-time AI applications, including Simulink for modeling and simulation. It can be used for developing algorithms and control systems for autonomous vehicles, robots, and other real-time AI systems.

MATLAB Online™ provides access to MATLAB® from your web browser. With MATLAB Online, your files are stored on MATLAB Drive™ and are available wherever you go. MATLAB Drive Connector synchronizes your files between your computers and MATLAB Online, providing offline access and eliminating the need to manually upload or download files. You can also run your files from the convenience of your smartphone or tablet by connecting to MathWorks® Cloud through the MATLAB Mobile™ app.

Yes, MATLAB provides tools and frameworks for deep learning, including the Deep Learning Toolbox. You can use MATLAB for tasks like building and training neural networks, image classification, and natural language processing.

MATLAB and Python are both popular choices for AI development. MATLAB is known for its ease of use in mathematical computations and its extensive toolbox for AI and machine learning. Python, on the other hand, has a vast ecosystem of libraries like TensorFlow and PyTorch. The choice depends on your preferences and project requirements.

You can find support, discussion forums, and a community of MATLAB users on the MATLAB website, Matlansolutions forums, and other AI-related online communities. Remember that MATLAB's capabilities in AI and machine learning continue to evolve, so staying updated with the latest features and resources is essential for effective AI development using MATLAB.

Without any hesitation the answer to this question is NO. The service we offer is 100% legal, legitimate and won't make you a cheater. Read and discover exactly what an essay writing service is and how when used correctly, is a valuable teaching aid and no more akin to cheating than a tutor's 'model essay' or the many published essay guides available from your local book shop. You should use the work as a reference and should not hand over the exact copy of it.

Matlabsolutions.com provides guaranteed satisfaction with a commitment to complete the work within time. Combined with our meticulous work ethics and extensive domain experience, We are the ideal partner for all your homework/assignment needs. We pledge to provide 24*7 support to dissolve all your academic doubts. We are composed of 300+ esteemed Matlab and other experts who have been empanelled after extensive research and quality check.

Matlabsolutions.com provides undivided attention to each Matlab assignment order with a methodical approach to solution. Our network span is not restricted to US, UK and Australia rather extends to countries like Singapore, Canada and UAE. Our Matlab assignment help services include Image Processing Assignments, Electrical Engineering Assignments, Matlab homework help, Matlab Research Paper help, Matlab Simulink help. Get your work done at the best price in industry.