How can I stop the graph , and how can it stip when the song stops?

function MusicPlay(InfoSongName)
PlayPlaySong = InfoSongName +".mp3";
[VariableSong, Variable] = audioread(PlayPlaySong);
Song = audioplayer(VariableSong, Variable);

PlaySong = input(' Will you like to play the song Yes or No ','s');
while strcmpi(PlaySong, 'Yes') ~= 1 && strcmpi(PlaySong, 'No') ~=1
    fprintf(' Selected Yes or No!!! \n')
    PlaySong = input(' Will you like to play the song Yes or No ','s');
end

%%

if strcmpi(PlaySong, "Yes")

%     NewVariable = audioread(PlayPlaySong);
%     plot(NewVariable)

%     soundsc(VariableSong, Variable);

    filename = PlayPlaySong;
    [Y,Fs] = audioread(filename);
    TotalTime = length(Y) ./Fs;
    t = 0:TotalTime/(length(Y)):TotalTime-TotalTime/length(Y);
    sound(Y,Fs)
    Y = Y';
    var = 50000;
    figure
    a = 1;
    for i = var:1000:length(Y(1, :))
        subplot(2,1,1);
        plot(t(a:i), Y(1,a:i));
        title("Left")
        subplot(2,1,2);
        plot(t(a:i), Y(2,a:i));
        title("Right")

        a = i;
%         fprintf("%f \n",a);
        pause(.75);
    end

    StopSong = input(' Would you like to stop the song? (Type Yes to stop or anything else to continue) ','s');

    while isempty(StopSong) || strcmpi(StopSong, 'Yes') ~= 1
        pause(12)
        StopSong = input(' Would you like to stop the song? (Type Yes to stop or anything else to continue) ','s');
    end

    if strcmpi(StopSong ,'Yes')
        clear sound
    end

elseif strcmpi(PlaySong, "No")
    fprintf("\t \n");
    fprintf('\t\t "Thank you for using MusicLive". \n');
    fprintf('\t \n');
end

% It plays the song and the plots the grpah but it will not stop the
% plotting (graph) when the song ends.
% Also the following code is not printing in the command window!
%{
StopSong = input(' Would you like to stop the song? (Type Yes to stop or anything else to continue) ','s');

    while isempty(StopSong) || strcmpi(StopSong, 'Yes') ~= 1
        pause(12)
        StopSong = input(' Would you like to stop the song? (Type Yes to stop or anything else to continue) ','s');
    end

    if strcmpi(StopSong ,'Yes')
        clear sound
    end

Answer 1

[Manish]

Hi,

I understand that you want to interrupt the graph based on user input.

This can be achieved by making some modifications to the for loop.

Below is the revised version of the for loop:

for i = var:1000:length(Y(1, :))
    % Plot left channel
    subplot(2,1,1);
    plot(t(a:i), Y(1,a:i));
    title("Left");
    
    % Plot right channel
    subplot(2,1,2);
    plot(t(a:i), Y(2,a:i));
    title("Right");
    % Update the index
    a = i;
    % Pause to allow song to play
    pause(0.75);
    
    % Check if the user wants to stop the song
    StopSong = input('Would you like to stop the song? (Type Yes to stop or anything else to continue): ', 's');
    if strcmpi(StopSong, 'Yes') 
        clear sound;
        break;
    else            
    fprintf("\t \n");
    fprintf('\t\t "Thank you for using MusicLive". \n');
      continue;
    end
end

Hope this solves!