FEED-HUNTING -
LET'S GO SEARCH FEED
What are
feeds, who need feed, how find them and how view it
writed by The Pitbull
with help from:
Stanley Cassidy, Gingy
LAST UPDATING:
03 July 2006
"FEED" INTRODUCTION
1) What are "feeds"?
"Feed" definition, also simplified, could frighten beginners and appear not as a matter
for everybody. Wrong! It is better probably to analyze before some example and then introduce the concept , and
so we recommend you temporally pass to following page and then return here for continuing reading.
With the term "feed" defines a transmission, often punctual, effected by a satellite and aimed to feed one or more chains televisions. These technical connections are used for directing some services or allow direct
real-time from distant places.
FEED, therefore, are service channels used from the broadcasting stations
for transfer the signal, and therefore audio and/or video, from two distant points among them exploiting the satellite as support.
It is easy to understand what we won't find as "feed" .
- It's possible to see porno
video?
No! Films are recorded in special study and recorded on ribbon or dvd
, and so they don't require direct real-time away satellite.
- It's possible to see musical concerts?
If
are replicas no! If instead it is an event in progress, and the projection is
scheduled in tv (as the MTVs Awards), also from some foreign channel, then there is possibility to
catch it. Really, this must not be take as a rule. More than once happened that has been diffused
in feed re-mix, or highlightses, or straight recorded concerts (for necessity of
moving and other reasons) .
- Which feeds are found with great frequency?
As already said: those for which is necessary have
real-time signal . For the most part news, bulletins, external interviews and sport events.
have
you ever wondered when to the news they tell "we have live our envoy from..." how does it make the signal to reach the television study?
We can bring a valid example quoting the role that feeds had on the Pope Giovanni
Paolo II disappearance.
Many many channels have transmitted in real-time funerals after having been for whole days outside of hospital.
Have you wondered
how they have done? Probably no, but sure you have seen various vans with the
dish on the roof parked nearby.
It's obviously that images, before arriving in our televisions (or in our monitors; -) have completed a long
path.
Try to synthesize it:
1) the cameraman, with camera on the tripod, make recording scene | |
2) the signal reaches via radio the van , positioned to few meters, that elaborates it and sends to the "support" satellite | |
3) "support" satellite "reflects" the signal toward the center of Broadcaster | |
4) in television studies he handles the assemblage, channel logo addition, data compression that until now were high quality, and ri-transmission toward the satellite on which channel is present (i.e. Astra 19.2°E or Hotbird 13°E) | |
5) the satellite "reflects" signal toward our dish | |
6) The dish "convert" signal and sends to our decoder |
From these six points we can
have various indications. We can first of all make sense of as it is possible receive feeds. To point three have said that signal reaches from
satellite to broadcaster. Who forbid us to receive same signal with our
dish? Nothing! And here disclosed secret of feeds. Practically, we receive same signal that should be reserved only to the
addressee (the broadcaster), but due to limits imposed by technology is radiated on wide territories.
We can make a first consideration
about "type" of images:
"Maurizio Costanzo Show" Feed Note absence of channel logo "Canale 5" | Since must be still elaborate they enjoy some maximum visual cleaning. Any logos or other message it's not present (and this makes channel often unrecognizable). Besides you can forget advertising spots since they are added in second moment. However, also this point must not be read as a rule. Different times, for make an example, to 7°E they have been transmitted for Eurovision feed that was the direct transmission of that single channel: this way it has happened for Sanremo Festival, when they were connected with Rai 1 with spot (and so also for the confrontation between Prodi and Berlusconi... the whole wake of the spots given by Rai 1 has passed in feed Ebu). Sometimes logo are present in the feed (and it is also for this that a channel as DSF, also being FTA, crypt its feedses... for protect mark). |
A second consideration we can do on "quality" of images.
Still a consideration on the feeds: they are almost always without censure. This means that you will assist to things that others won't see in tv.
Besides, we add that FEED are not always composed by audio and video, but more often than you
think, exists signals they have no Pid audio and also not Pid video (sometimes for more "camouflage", sometimes because they are UFO, signals of data transmissions somehow not identified).
2/
9
FEED INTRODUCTION
1)
What are "feeds"?
2) Feed Archive
3)
Requirement
4) Hunting?
SEARCHING METHODS
5) Direct insertion
6) Charts
based search
7) Blind search
8)
Feed in 4:2:2 format and encrypted
9)
Conclusions