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Ignition · 12-03-2005, 10:21

The delay is caused because of a few things. Obviously the delay over satellite which ntl are also subsceptible to, the processing latency at headends, the latency over the fibre network serving the individual hubsites, the buffering that's done to provide resiliency in the case of an SDH 'hit'.

Biggies really are the multiplexing that is done at headends, with the buffering, etc, that is required there (headends don't pump the stuff out straight away there's a slight delay while various processes are done to it), and satellite round trip times.

You'll also find delay varies upon the channel as well, Freeview will arrive first on some channels, Sky on others.

12-03-2005, 10:21	#9
Ignition Permanently Banned Join Date: Jun 2003 Location: South-East London Age: 47 Services: Depends who's being serviced :p Posts: 2,588	Re: Television Delay on Cable? The delay is caused because of a few things. Obviously the delay over satellite which ntl are also subsceptible to, the processing latency at headends, the latency over the fibre network serving the individual hubsites, the buffering that's done to provide resiliency in the case of an SDH 'hit'. Biggies really are the multiplexing that is done at headends, with the buffering, etc, that is required there (headends don't pump the stuff out straight away there's a slight delay while various processes are done to it), and satellite round trip times. You'll also find delay varies upon the channel as well, Freeview will arrive first on some channels, Sky on others.