Why do FIR filters always have odd tap counts?

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Article #1169

#1169

From: Dave Mc Mahan
Date: Thu, 06 Dec 1990 07:02

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I have done some playing around with FIR filters for various purposes, and
always find something peculiar.  FIR filters always have odd tap counts.
Why is that?  I have looked in various DSP books, but can find no hint as
to why that fact is true.  The books I have looked in, however, always use
odd tap counts.  Can somebody give me a good, clear explaination?  I'm more
interested in a real explaination rather than pointers to books or
articles, but will try to find the articles if sited.

  -dave

-- 
Dave McMahan                            mcmahan@netcom.uucp
					{apple,amdahl,claris}!netcom!mcmahan

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!usc!apple!netcom!mcmahan
From: mcmahan@netcom.UUCP (Dave Mc Mahan)
Newsgroups: comp.dsp
Subject: Why do FIR filters always have odd tap counts?
Message-ID: <18193@netcom.UUCP>
Date: 6 Dec 90 07:02:05 GMT
Organization: Dave McMahan @ NetCom Services
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