title: Converting an array of shorts to an array of doubles
body: <p>How I could convert array of type short to array of type double in C/C++?</p>
  
  <p>I have code to read audio data from wav file and output is array of type short. So now I want to use this data for FFT (I don't want use libraries).</p>
  
  <p>Any tricks or ideas?</p>