Freeview bit rates?

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allstarnz

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#14405 2-Jul-2007 12:46

Can someone please confirm what bit rate the freeview channels are running at?

allstarnz

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#76822 3-Jul-2007 23:41

anyone?? surely some geek on here must know :p

PromNZ

154 posts

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#76997 5-Jul-2007 09:30

The word from engineering at work (TV3) is:

FV 6 to 8 mbps, SD is currently using a variable 2mbs on some channels, but they ramp up some sports coverage and reduce other channels to compensate.

The FV ones are variable depending on broadcaster and other stuff, but expect between 6 -> 8 mbps.

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allstarnz

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#76999 5-Jul-2007 09:56

great, thanks for the answer PromNZ

openmedia

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#77529 9-Jul-2007 22:02

TV3 + C4 are using anamorphic widescreen 720x576 at around 6Mbit

TV1/2/Maori are 4:3 720x576 usually just under 4Mbit

The Sky transmissions of TV 1/2 are about 2.6 Mbit, and they transmit Maori TV at a 544x576 4:3 to save on bandwidth.

Steve

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

allstarnz

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#77685 10-Jul-2007 22:43

thanks 'Openmedia'

Yes, you're 100% correct about TV3. Did a little test record of the transport stream, and PowerDVD has it as a VBR at around 6 megabits per second. Looks quite nice.

Sky certainly hack the bitrates down on their vpol rebroadcasts of TVNZ stations.