Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site watdcsu.UUCP
Path: utzoo!watmath!watdcsu!herbie
From: herbie@watdcsu.UUCP (Herb Chong [DCS])
Newsgroups: net.audio
Subject: Re: Defeating Dolby
Message-ID: <901@watdcsu.UUCP>
Date: Mon, 4-Feb-85 10:39:49 EST
Article-I.D.: watdcsu.901
Posted: Mon Feb  4 10:39:49 1985
Date-Received: Tue, 5-Feb-85 04:29:58 EST
References: <1063@opus.UUCP>
Reply-To: herbie@watdcsu.UUCP (Herb Chong [DCS])
Distribution: net
Organization: U of Waterloo, Ontario
Lines: 31
Summary: 

In article <1063@opus.UUCP> scott@opus.UUCP (Scott Wiesner) writes:
>I've noticed that placing my Sanyo "walkman" next to my terminal 
>seems to cut out the Dolby.  I've played with various tone settings
>and Dolby in/out variants, and as from what I can judge, the terminal
>(a Zenith Z19) simply eliminates the Dolby. 
>
>Any guesses as to what's going on, and whether it's affecting my tapes?
>
>-- 
>
>Scott Wiesner
>{allegra, ucbvax, cornell}!nbires!scott

it is possible, though i'm not sure how likely, that you're getting 
RF noise from the terminal inducing a signal in the circuitry just high enough
to be beyond the frequency response of your headphones but not so high as
to be outside the range of the Dolby circuitry.  it would think that there
is high frequency information from the tape and since it seems to be
relatively constant, would more or less lock the Dolby circuit at one
expansion/equalization position.  i think that this is highly unlikely, but
possible.  you don't mention what you mean by `eliminate'.  do the highs
seem muted compared to away from the terminal?

Herb Chong...

I'm user-friendly -- I don't byte, I nybble....

UUCP:  {decvax|utzoo|ihnp4|allegra|clyde}!watmath!water!watdcsu!herbie
CSNET: herbie%watdcsu@waterloo.csnet
ARPA:  herbie%watdcsu%waterloo.csnet@csnet-relay.arpa
NETNORTH, BITNET, EARN: herbie@watdcs, herbie@watdcsu