title: How can I make a spectogram out of a wav file
body: <p>Well I want to make a spectogram of a song. The first 10 seconds are the points of my interest. 
  Should I just do this or is it wrong if I am wrong correct me.</p>
  
  <p>Commands:</p>
  
  <pre><code>song = wavread('C:\Path of My FIle\song.wav')
  
  length(song)/44100
  
  song_seg = lovers(44100*1 : 44100*10)
  
  plot(song_seg) % this command makes my spectogram Hz/Time
  </code></pre>