Path: utzoo!attcan!uunet!lll-winken!csd4.milw.wisc.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!UDEL.EDU!Mills
From: Mills@UDEL.EDU
Newsgroups: comp.protocols.tcp-ip
Subject: Re:  human factors aspects of echo delay
Message-ID: <8905120035.aa07267@huey.udel.edu>
Date: 12 May 89 04:35:25 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 12

Phil,

For my second trick, I was expected to read a live, one-minute commercial
spot during a one-minute network spot and make the ends come out so you
didn't know the network spot was there. The Mutual Broadcasting System
may not be thought of in the same breath as "Auntie" BBC, but you sure
learned some strange skills working that network. 'Nuff said; I seem to
remember from various studies of teleconferencing systems that in the
order of 100 ms is the most demanding regime for echo cancellors, room
accoustics and discombobulated broadcasters.

Dave