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From: perl@rdin.UUCP
Newsgroups: net.video,net.audio
Subject: Re: Re: MTS stereo decoders ?
Message-ID: <587@rdin.UUCP>
Date: Tue, 21-Oct-86 14:41:40 EDT
Article-I.D.: rdin.587
Posted: Tue Oct 21 14:41:40 1986
Date-Received: Thu, 23-Oct-86 07:08:46 EDT
References: <368@cord.UUCP> <1372@uwmcsd1.UUCP>
Organization: Resource Dynamics Inc., New York
Lines: 31
Xref: watmath net.video:3513 net.audio:9802

Well, here's what I know, for all it's worth:

Whether a stereo VCR has MTS built into its tuner or not, it is still a
'stereo' VCR, not an 'MTS' VCR.  What I mean by that is that the VCR
records two audio channels.  It doesn't know or care where those two
channels came from.  The RF output of the VCR is created by mixing the
two channels from the tape into a mono channel that is sent to your TV
in the conventional way.  When you are watching TV 'through the VCR',
the VCR tuner is converting an RF input into video and audio.  The
video and audio are then converted to Channel 3 RF just as if they were
coming off of tape.  Therefore, even if your VCR has MTS, it will not
pass the MTS signal along to your TV.  You can of course connect the
audio outputs of the VCR to your HiFi.

As for the MTS decoders with the probe, since the VCR creates its own
Channel 3 signal from the audio output of its tuner, the signal going
into your TV will not have the MTS signal in it even if the signal is
being broadcast.  You would have to attach the probe to the VCR to pick
up the MTS signal that is being received by the VCR's tuner and attach
the probe to your TV when not using your VCR.

As for noise reduction on HiFi VCR's, I haven't seen it used.  I don't
know how VCR HiFi works, but I have reason to believe that there is
some technical reason that makes noise reduction incompatable or
unnecessary with the HiFi tracks.  Many pre-recorded HiFi tapes specify
that they have noise reduction on the linear tracks only.

Robert Perlberg
Resource Dynamics Inc.
New York
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