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Old 04-03-2015, 10:15   #1
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Compression on streaming services?

I had a Samsung 40" LED and I didn't really notice compression on say Netflix, but it did have horrible motion trails on darker scenes (same with blu ray).

I now have a Panasonic 39" LED and the PQ was a marked improvement over the samsung and motion trials are non existent... but I am noticing more compression, especially on darker scenes on Netflix, I have fibre optic connection, so fast. I don't see this compression on a decent blu ray.

Is this normal?

(watching Netflix on mainly Apple TV and sometimes PS3).

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Old 05-03-2015, 13:08   #2
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Is your display calibrated? Try setting your PS3 to 'Full' instead of 'Limited' in display settings. Seeing some compression in darker scenes is pretty normal though, as I *think* they compress films on Netflix to something like 4GB for every hour of run-time, so it will never look as good as a Blu-ray.

Are all your DNR settings disabled on your TV too? Things like MPEG compensation etc.
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Old 05-03-2015, 17:33   #3
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Quote:
Originally Posted by LouBarlow View Post
Is your display calibrated? Try setting your PS3 to 'Full' instead of 'Limited' in display settings. Seeing some compression in darker scenes is pretty normal though, as I *think* they compress films on Netflix to something like 4GB for every hour of run-time, so it will never look as good as a Blu-ray.

Are all your DNR settings disabled on your TV too? Things like MPEG compensation etc.
Thanks Lou. Need to try it when its darker, all mpeg compensation is switched off and sharpness is 0 - have switched on full on Ps3.

I think its unavoidable. 4gb per hour on netflix is quite a lot more than iTunes -

i.e. Nightcrawler
itunes - 3.83gb (1080p)
blu ray - 33.5gb

I know that itunes just has 5.1 sound, but even so!

How should I have these set, please:

PS3 - Auto / RGB / Y pb/cb pr/cr
Apple TV - Auto / YCbCr / RGB High / RGB low

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Last edited by orac; 05-03-2015 at 17:39.
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Old 05-03-2015, 19:09   #4
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I think it is set dependent unfortunately. I was always told to set RGB to 'Limited' but my Pioneer must support the full RGB range as the image is completely transformed when I set RGB to 'Full'. Limited makes everything look washed out and blacks look grey and I see more compression artefacts. If blacks look crushed and you lose shadow detail though, you obviously need to set it to 'Limited'.

I always turn on the Super White setting. As to the YCbCr settings, I think it's safer to leave it at Auto.

It's also worth considering that certain material will always look worse on Netflix - things like The Killing, which is naturally 'grainy' will show more artefacting.

Last edited by LouBarlow; 05-03-2015 at 19:10.
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Old 05-03-2015, 19:20   #5
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If you deeply care about such things, it's well worth investing in a light meter reader thing and doing a proper calibration. It's not as technical as it seems, and you just need to a bit of reading. It's extremely satisfying when you're done and there's a night and day difference.

There's a good guide here. It assumes no previous knowledge and takes you through the whole thing. Spend a couple of hours on it, and it's dead easy.

http://www.curtpalme.com/forum/viewtopic.php?t=35322

http://www.curtpalme.com/forum/viewtopic.php?t=11436
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Old 06-03-2015, 05:13   #6
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The only problem I have with them is I bought one, set my panel up, then years later went to redo my set, as over time, naturally plasma panels lose brightness, and found out they are only good for a short while, and the meter was now useless! As long as you don't think of them as a long term investment, you will be fine.

Mine was an Eye One Pro too, so quite an investment for one use

That guide is the one I used too, though it has now been updated looking at it. Top guide it is too.

Last edited by LouBarlow; 06-03-2015 at 05:14.
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Old 06-03-2015, 07:02   #7
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Ouch!
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Old 06-03-2015, 08:26   #8
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Thanks KRW, but I am on a budget...

The Panasonic has a far better picture than the Samsung did and I found some very nice settings which I tweaked.
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Old 06-03-2015, 17:42   #9
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See, if you buy a meter and then sell it on, it can cost about £10-£20 all in per go
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