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Path: utzoo!linus!philabs!seismo!ut-sally!crandell
From: crandell@ut-sally.UUCP (Jim Crandell)
Newsgroups: net.audio
Subject: Re: "get that digital crap out of here"
Message-ID: <522@ut-sally.UUCP>
Date: Sun, 4-Dec-83 20:14:40 EST
Article-I.D.: ut-sally.522
Posted: Sun Dec  4 20:14:40 1983
Date-Received: Mon, 5-Dec-83 22:53:39 EST
References: <2233@rabbit.UUCP>
Organization: U. Texas CS Dept., Austin, Texas
Lines: 18

>There is an obvious experiment to try.
>
>Several people, Sony among them, now make gadgets to turn a video recorder
>into a digital audio recorder.  Take your favorite super-duper analog program

This is an excellent idea, except for one minor flaw.  When you're
comparing two different signal sources in this manner, you have to
synchronize them very accurately.  From experiments with delay lines,
I've learned that a person with a good sense of pitch can easily
recognize the insertion or removal of a 200-microsecond delay in
most program material if the transition can be accomplished quickly
enough.  I'd guess that you'd have to lengthen the dead time in the
switches to a point at which the maximum possible sync error becomes
inconsequential; .5 second, say.
-- 
   Jim ({ihnp4,kpno,ut-ngp}!ut-sally!crandell or crandell@ut-sally.UUCP)