Signals & Systems

%%fourier transform button

s=abs(fft(song1));

figure(1);

subplot(2,1,1),plot(s),title('frequency spectrum');

subplot(2,1,2),plot(song1),title('waveform');

% Button pushed function: StopButton

        function StopButtonPushed(app, event)

            clear sound;

        end

switch app.FrequencyDropDown.Value

                case '0.5'

                    jack05;

                case '1.0'

                    jack;

                case '1.5'

                    jack15;

                case '2.0'

                    jack2;

            end