Create an audio replay in slider callback

Hey,

I have a GUI where I want to instantly hear my changes that I do via a slider. In this example I have a amplitude-modulation of a simple sine sound that I change via the slider. But the audioplayer doesn't work inside a callback "loop". Do you have any good suggestions?

Also I can't pass any variables to the callback "plotstuff" function like the variable "t". Is there a better solution to this than globel variables?

global Fs = 1000; %Samplingrate

t_min = 0;
t_max = 3;
global t = linspace(t_min,t_max,t_max*Fs); %Timevector

  sld1 = uicontrol (                    ...
         'style', 'slider',                ...
         'Units', 'normalized',            ...
         'position', [0.1, 0.9, 0.8, 0.1], ...
         'SliderStep', [1/6 1/3],          ...
         'min', 0,                         ...
         'max', 3,                        ...
         'value', 3,                       ...
         'callback', {@plotstuff}          ...
       );
   
       
       function plotstuff (h, event)
          amp =  get (h, 'value');
          global t;
          global Fs;
          
          f = 200;                % Frequency of sound
          
          y = amp * sin(2*pi*f*t); % Amplitudemodulation depending on slidervalue
          
          %Plot
          plot(t,y)
          grid on
          ylim([-3 3])
          
          %Play
          player = audioplayer(y,Fs);
          play(player)    
       end
       
       

Thank you very much!