Detecting sudden rises and printing on the console

Hi, I'd like to detect the number of claps in a given wav file. Here's my first attempt. I can draw the spectogram but how can I print " There is only one clap " or " There are two claps " on the console according to the sudden rises?? Here is my code, for the file that includes one clap, there exist a single sudden rise and two sudden rises for the file that includes two claps. But how can I detect the sudden rises from the plotting and write it on the console?

   hfile = 'one.wav';

   [stereo1, Fs, nbits, readinfo] = wavread(hfile);
   mono1 = mean(stereo1,2);

   M = round(0.01*Fs); 
   N = 2^nextpow2(4*M);
   w = gausswin(M);

   [S,F,T,P] = spectrogram(mono1,w,120,N,Fs);

   thresh_l=1000;
   thresh_h=10000000;
   % take the segment of P relating to your frequencies of interest
   P2 = P(F>thresh_l&F<thresh_h,:); 

   %show the mean power in that band over time
   m = mean(P2);
   plot(T,m);