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From: wtm@neoucom.UUCP (Bill Mayhew)
Newsgroups: net.micro.amiga
Subject: Re: Amiga video
Message-ID: <299@neoucom.UUCP>
Date: Fri, 10-Oct-86 11:05:23 EDT
Article-I.D.: neoucom.299
Posted: Fri Oct 10 11:05:23 1986
Date-Received: Sat, 11-Oct-86 20:46:24 EDT
References: <608@chinet.UUCP>
Organization: Northeastern Ohio Universities College of Medicine
Lines: 27
Keywords: RS-170A compatable?
Summary: It's pretty close.

Most VCRs, etc will be happy with the Amiga video output,
especially if you are using interlace mode.  If you are using a
program that does not use an interlaced video, you can run SetLace
beforehand, which will make a 640*200 screen use 400 lines out to
the monitor.  SetLace is a P/D program.  I forgot where I got it;
it's probably on on e of the Fish disks.

Eventhough the Amiga video is close to RS-170, it isn't quite.  If
you are going to use Amiga video for a commercial purpose, you
should run it though a time base correcter.  There is some high
high frequency noise in the 3.58 MHz subcarrier that this will take
care of.  The color burst signal from the Amiga is a bit sloppy,
and the t.b.c. will take care of that too.

A time base corrector is a pretty expensive n thousand dollar
device, but most professional studios have one.  For your own
purposes, if you just want to fool around with a home VCR, the
interlaced output should be just fine.  If you have a four-head
type of VCR, you can probably record even the noninterlaced output
from the Amiga as well, without problems.

Bill

Bill Mayhew
Northeastern Ohio Universities' College of Medicine
Rootstown, OH  44272    USA    phone:  216-325-2511
(wtm@neoucom.UUCP  or  ....!cbosgd!neoucom!wtm)