Re: How to build a noise reducer?

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Article #14724

#14724

From: C.M. Hicks
Date: Wed, 18 Nov 1992 16:18

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zhenya@socs.uts.edu.au ( The Firefox.) writes:

>Does anyone have any ideas about the best way to build a device that takes
>an input from an external microphone, shifts the signal 180 degrees out
>of phase, and then re-emits it with little loss of resolution of the
>waveform in the process?

>It would be great if it could also work from frequencies of about 20Hz up...

>Maybe there is a mail-order kit for something similar that someone know of?

>Thanks in advance....
>Zhenya.
>--

Excuse me if I'm being thick, but won't reversing the microphone connections
do this :-? If this isn't what you mean (it doesn't have much to do with
'noise reducing' - see subject line) then please restate the question, and 
maybe I can be more helpful...

Chris

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Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!warwick!uknet!cam-eng!cmh
From: cmh@eng.cam.ac.uk (C.M. Hicks)
Newsgroups: sci.electronics
Subject: Re: How to build a noise reducer?
Message-ID: <1992Nov18.161840.1753@eng.cam.ac.uk>
Date: 18 Nov 92 16:18:40 GMT
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