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From: cas@media-lab.media.mit.edu.MEDIA.MIT.EDU (Scud)
Newsgroups: comp.dsp,sci.electronics
Subject: Re: 180 deg phase shift
Message-ID: <5781@media-lab.media.mit.edu.MEDIA.MIT.EDU>
Date: 6 May 91 02:01:13 GMT
References: <1991May5.233533.18783@ux1.cso.uiuc.edu>
Reply-To: cas@media-lab.media.mit.edu (Scud)
Organization: MIT Media Lab, Cambridge MA
Lines: 8

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?

Use an op-amp as as inverter (ie with a gain of -1). One chip, one resistor,
one pot.

cas