title: How to convert a low-pass filter to a band-pass filter
body: <p>I have a a low pass filter described by the following transfer function:</p>
  
  <p>h[n] = (w_c/Pi) * sinc( n * w_c / Pi ), where is w_c is the cutoff frequency</p>
  
  <p>I have to convert this low-pass filter to a band-pass filter.</p>