title: Spectrogram Matlab
body: <p>I have the following code in matlab:</p>
  
  <pre><code>[Sound Fs bits] = wavread('a.wav');
  </code></pre>
  
  <p>Now i have to use the function spectrogram and plot it (i have to give the function spectrogram the following arguments: Sound and Fs and the function is suposed to return a vector with the frequence composition of the signal and a vector with the frequences in wich the composition was calculated).</p>
  
  <p>My doubt is: how do i use the function with these specifications? Can someone help me?</p>