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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!wupost!emory!swrinde!gatech!rutgers!uwvax!astroatc!vidiot!brown
- From: brown@vidiot.UUCP (Vidiot)
- Newsgroups: rec.video
- Subject: Re: Stereo commercials, mono programming?
- Message-ID: <4676@vidiot.UUCP>
- Date: 1 Jan 93 18:57:37 GMT
- References: <1993Jan1.065214.22765@bradley.bradley.edu>
- Reply-To: brown@vidiot.UUCP (Vidiot)
- Organization: Vidiot's Hangout
- Lines: 31
-
- In article <1993Jan1.065214.22765@bradley.bradley.edu> guru@camelot.bradley.edu (Jerry Whelan) writes:
- <
- < I just noticed an odd phenomenon. I have a Sony 20EXR25 (or
- <something like that, a 27" tube with stereo and PIP) tv with a
- <little red light that comes on when the tv thinks it is receiving
- <a stereo broadcast.
- < Occasionally I have seen the stereo light blink on when the signal
- <for a mono station got too noisy (which seems odd to me, anyone want
- <to comment on that?). However, today I started paying close attention
- <to the light and noticed that while watching USA (which is mono over
- <the cable system here), whenever a _local_ commercial would come on,
- <the stereo light would come on too. Like I could give a shit if the
- <commercials were in stereo... So what I want to know is what is the
- <deal here? Is the `hard part' in converting the USA satellite stereo
- <feed to a cable-ready stereo signal, or is the `hard part' just in
- <putting out a stereo cable signal to begin with. Is the cable company
- <being competent in not decoding the stereo satellite feed, or just
- <cheap in that they won't pay for the required equipment?
-
- The MTS system is triggered with a pilot tone equal to the horizontal sync
- rate, which is 15734 Hz. Because many cable companies do not bandpass the
- audio, to limit it to 15 kHz, frequencies above 15 kHz get through, like trip
- tones for local commercial insertion. These tend to get detected by the local
- TV set as stereo.
-
- All you can do is ignore the light.
- --
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