How to build a noise reducer?

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Article #14688

#14688

From: The Firefox.
Date: Wed, 18 Nov 1992 04:05

19 lines
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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.
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Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!ames!saimiri.primate.wisc.edu!zaphod.mps.ohio-state.edu!usc!rpi!batcomputer!munnari.oz.au!metro!socs.uts.edu.au!ultima!zhenya
From: zhenya@socs.uts.edu.au ( The Firefox.)
Subject: How to build a noise reducer?
Message-ID: <zhenya.722059559@ultima>
Sender: zhenya@socs.uts.edu.au (Zhenya Yourlo - The Firefox.)
Organization: Computing Sciences, Uni of Technology, Sydney.
Date: 18 Nov 92 04:05:59 GMT
Lines: 19