🚀 go-pugleaf

In article <257@ivucsb.UUCP> todd@ivucsb.UUCP (Todd Day <todd>) writes:
>
>...Ad Zapper uses the new SRT technology so you can enjoy virtually
>commercial-free recordings of your favorite TV shows and movies.
>When your VCR records, Ad Zapper eliminates 95% of comercial time...
>..Works with ... infra-red control...
>
>Anyway, does anybody know what is in the video signal that tips off
>this device that a commercial is coming up and when the commercial is
>over?  On some cable channels like CNN and ESPN, they have the touch-tone
>sounds before commercials begin and end, so it wouldn't be too hard to
>key on those.  But what about standard broadcast channels which have
>none of these tones?  Is there something in the vertical sync bar?

      Ever Notice how many commercial sound levels are much much greater
 than normal tv sound?  It wouldnt be very hard to monitor sound levels
 and when the sound level reaches critical commercial level (:) ) turns
 off the recording. Thats probably why they say only 95% of the time,some
 commercials are as loud as others(thank god).
 
glenns@sco

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