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From: brown@nicmad.UUCP
Newsgroups: net.video
Subject: Re: Satellite Signal Scrambling, Cable TV Stereo
Message-ID: <586@nicmad.UUCP>
Date: Mon, 24-Mar-86 13:12:32 EST
Article-I.D.: nicmad.586
Posted: Mon Mar 24 13:12:32 1986
Date-Received: Fri, 28-Mar-86 05:20:25 EST
References: <8603150133.AA19989@seismo.CSS.GOV> <573@nicmad.UUCP> <312@omen.UUCP>
Reply-To: brown@nicmad.UUCP (Mr. Video)
Organization: Nicolet Instrument Corp. Madison WI
Lines: 40

In article <312@omen.UUCP> caf@omen.UUCP (Chuck Forsberg WA7KGX) writes:
>In article <573@nicmad.UUCP> brown@nicmad.UUCP (Mr. Video) writes:
>  Also, the sound
>>quality is MUCH better on FM than it will ever be on MTS.  Try using a
>
>Given the usual sloppy audio practices on TV and FM stations, I doubt
>that the slight edge in FM MPX frequency response will make much difference.
>
>Because of MTS's DBX compression of the L-R signal, signal to noise ratio
>should be as good or better than with FM MPX.
>
>There is a currently observed hum in the MTS difference channel, especially
>noticeable during applause on Johnny Carson.  Whether this is a defect in
>certain decoders, poor transmitter operation, or something more fundamental,
>nobody seems to know at the moment.  I plan to hit the local TV station
>chief engineers on this one soon.

Since I listen to both NBC and CBS in MTS stereo and MTV and VH-1 in FM stereo,
I can say that MTS stereo sucks, compared to FM stereo.  There are problems
with MTS sound.  One of the main problems (my opinion, mind you) is that the
sound is transmitted with the video.  TOO much video noise gets through.

FM sound would be an improvement under the following conditions:

	1. The cable company receives the sound directly from the tv station
	2. Wide-band FM modulation is used from the tv station to the cable
	   company.

If the cable company receives the sound via off-air MTS decoder, then the FM
sound will not be improved.  Our local cable company is working with the
local NBC station to provide direct left and right audio to the head-end.
The MTS encoding will then take place at the head end.  Hopefully they will
then provide FM stereo of the station (mono sound is provided now.)
-- 

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