Xref: utzoo comp.dsp:1617 sci.electronics:19931 Path: utzoo!utgpu!cunews!software.mitel.com!grayt From: grayt@Software.Mitel.COM (Tom Gray) Newsgroups: comp.dsp,sci.electronics Subject: Re: 180 deg phase shift Message-ID: <7821@nst> Date: 6 May 91 18:21:37 GMT References: <1991May5.233533.18783@ux1.cso.uiuc.edu> Organization: Mitel. Kanata (Ontario). Canada. Lines: 11 In article <1991May5.233533.18783@ux1.cso.uiuc.edu> frerichs@adsl.ece.uiuc.edu (dfRERICHS) writes: >Does anyone know the algorithm that would take a stream of sampled sound >,shift it 180 deg in phase and spit it back out again? > >ie sound -> a/d -> dsp to shift phase -> d/a -> sound > Invert the sign bit