Sound -> Movement circuit required

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Article #15859

#15859

From: Andy Mell
Date: Fri, 18 Dec 1992 20:32

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Could someone help me out here please? I'm trying to knock up some sort
of sound -> movement circuit so that I can convert changes in sound
(input at line level) to voltage pulses in order to drive a stepper
motor.

The outcome of all this is a scanning mirror which moves in response to
sound for use in a disco, I like the idea, and would love to build one
rather than buy one as they are rather expensive.

Any clues please? You can email me here or post.

Many thanks.

Andy

-- 
-------------------------------------------------------------------------------
Andy Mell, Applied Physics Department,  |   andy@santafe.edu
University of Hull, Hull, HU7 6RX       |   amell@nyx.cs.du.edu
England.                                |   torq@gnu.ai.mit.edu

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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!spool.mu.edu!nigel.msen.com!fmsrl7!lynx!SantaFe!laguna!andy
From: andy@laguna.santafe.edu (Andy Mell)
Newsgroups: sci.electronics
Subject: Sound -> Movement circuit required
Message-ID: <!pbr5q_@SantaFe.edu>
Date: 18 Dec 92 20:32:17 GMT
Organization: Santa Fe Institute
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