Newsgroups: comp.dsp Path: utzoo!utgpu!cunews!bnrgate!bmerh2!news From: myhui@bnr.ca (Michael Hui) Subject: Re: 180 deg phase shift Message-ID: <1991May09.192740.4165@bmerh2.bnr.ca> Sender: news@bmerh2.bnr.ca (Usenet News Admin) Organization: Bell Northern Research, Ottawa, Ontario Canada References: <1991May9.160115.3494@cpsc.ucalgary.ca> Date: Thu, 09 May 91 19:27:40 GMT In article <1991May9.160115.3494@cpsc.ucalgary.ca> heredia@enel.ucalgary.ca (Edwin Heredia) writes: >For those who can't believe that inverting the signal produces >a 180 deg. phase shift and for those who think that this trick >works only with "easy-to-work" signals as pure tones: > >Given *ANY* signal x(n) with Fourier Transform X(w) ^^^ Really? You surely mean _periodic_ signal. Michael MY Hui Ottawa Canada myhui@bnr.ca