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Originally Posted by popper
the chances are great that the 1 and 2 are infact a split, as its unlikely they feed 2 cables to your house from the cab.
when you say 'Have looked at supplying a signal from an external aerial.' i take it you refer to analoge tv and not digital DVB-T ?.
with DVB, you eather get it great, or massive blocky bits, or even not at all, the DVB way is far better than analogue in that when it gets a good signal, you are seeing the full quality potential in that .ts (stransport stream) and you would use something like MPC or VLC to just play back your .ts recordings (bda drivers save .ts as default) for instance.
---------- Post added at 20:32 ---------- Previous post was at 19:59 ----------
i was going to upload 2 samples to my ntl space to show how analogue (taken off cable feed) and digital .ts (taken off DVB-T look but it wont let me upload to the ntl webspace doh.
the upshot is the analogue comes out at 49meg mpeg2 encoded with winDVr3.0 ( the only app able to encode without dropping frames on a amdXP 2400+) and looks almost like this in realtime unless you use Dscaler), and a dvb-t .ts at 29meg straight copy off the stream, the .ts beats the analogue by miles and you get AC3 sound to boot...
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I'm not sure exactly what you are doing to obtain your feeds, but the bitrates you mention are in no means accurate. Cable also does not include AC3 at the moment.
An entire cable transport stream (with 10 video sources) is approx 38 Mb/s at 64QAM. Satellite is 34Mb/s at DVB S (again typically 10 sources).
DVBS2 is used by Premiere and Sky for their HD ( the Beebs feed is DVB S, with 2 MPEG2 streams as well).
The broadcast quality encoders do not drop frames (guaranteed) hence why they are more expensive.