I think I know where those Olympic channels came from

Trollslayer

Distinguished Member
The past week or so some channels - FX HD for example - have definitely been lower quality to the point of seeing macro blocks on some scene transitions.
Lets hope it returns to normal in a couple of days.
 

logiciel

Moderator
Normality will be very welcome.:D
 

logiciel

Moderator
Nice example of "here's the bad news now for the good news"!
The OP there got one thing right - the ceremony was fantastic - fantastically silly.:laugh:
 

Miss Chief

Well-known Member
Trollslayer said:
The past week or so some channels - FX HD for example - have definitely been lower quality to the point of seeing macro blocks on some scene transitions.
Lets hope it returns to normal in a couple of days.
Sky said they removed quite a lot of the Box Office channels but they're not all in HD so bandwidth has surely suffered somewhere.
 

Ragnarok

Member
Sky freed up 9 transponders for them, and didn't touch any of there current HD transponders.

just the HD channels here HD - Eutelsat 28A & Astra 1N/2A/2B at 28.2°E - LyngSat

Most of the Olympic transponders have been turned off

The blocking your seeing is the stat muxing on that transponder, on too many occasions not having enough bit to keep all channels macroblock free.
The Problem is on that transponder Eurosport HD gets higher priority and was showing alot of action from the Olympics live. which can leave as few as 20mbit/s for E4, Sky Arts 2 and FX to share between 3 channels.

I personally think 1 high bandwidth channel + 2 others tops per 42mbit/s transponder. That configuration which also plays often even worse havoc with discovery HD, Syfy HD and SBOHD1 with ESPN getting the lions share on that transponder. Discovery showing full Video frame rate material which needs more bandwidth often makes SBO HD1 and syfy run at incredibly low bitrates.

On the whole the other channels are ok, but sky movies often have issues with noisy grainy films ( it's very hard to encode noise because it's unpredictable thus needs more bits) on more than 1 channel on the transponder at any 1 time which can screw up the picture for all channels on that transponder. Sky IMO should treat this premium content better too, even if 4 channels per transponder is acceptable most of the time.

Still that relatively good compared to most providers on the continent.

The other transponders tend to have a good balance of channels, and they all look decent 99% of the time source content permitting.
 
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