I need to know how can plot real time sine wave graph of speech signal in app designer.

I would like to design a GUI in-app design for speech/acoustic signal processing. I don't know what to do to plot a real-time sine wave graph

[Mario Malic]

Start from the acquisition, figure out how to obtain a real time signal.

[Ayush]

1. Create a new App Designer app by selecting "App Designer" from the MATLAB Home tab.
2. Drag and drop an axes component onto the app design canvas.
3. Add the following code to the app's startup function to initialize the axes and create a line object for the sine wave:

function startupFcn(app)
    % Set the x and y limits of the plot
    xlim(app.UIAxes, [0, 2*pi]);
    ylim(app.UIAxes, [-1, 1]);

    % Create a line object for the sine wave
    app.Line = animatedline(app.UIAxes);
end

4. Add an updatePlot function to continuously update with new data.

5.Add a timer component to the app by dragging and dropping it onto the design canvas.

6.Set the timer's period to the desired refresh rate (e.g., 0.1 seconds).

7. Add the call to the updatePlot function in timer's timerFcn callback.

[Kulbir]

Hi Sir, Thank you for the information. i have done with the steps upto 3. Next i am bit confused,

step 4. i dont know what shd i add to assign updatePlot function to it. i am stuck here, please help me out then i will move to the next steps. Thx

[Jacob Mathew]

You can refer to the following documentation that goes through each of the step:

https://www.mathworks.com/help/audio/gs/real-time-audio-in-matlab.html

You will need to adapt this as instead of using scopes, you will be plotting it