%%
Fs = 11025;
y = chirp((0:10*Fs)/Fs, 0, 10, 2*Fs);
[ w, f, t, p ] = spectrogram(y,round(0.1*Fs),round(0.05*Fs),[],Fs);
figure, imagesc( t, f, (p).^.25 ), set( gca, 'ydir', 'normal' )
