\"  fir_resp.roff from ObjectProDSP 0.1
\"  Copyright (C) 1994, Mountain Math Software, All rights reserved.
\"  Licensed for free use and distribution under version 2 of the Gnu General
\"  Public License. Please see file COPYING for details and restrictions.
\"  
\"  ObjectProDSP is a trademark of Mountain Math Software.
\"  
.H 1 "Fir filter response example"

This example creates a graph of the frequency response of a 
fir filter operating on a complex data stream. The plot is generate
by passing an impulse through the filter and taking a complex FFT
of this output. The resulting complex plot shows the amplitude and
phase response of the filter. Position the cursor in this plot and
type `^B' to see a decibel power plot or `^P' to see a power plot
of the same data.

