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 Sigma vs. Realtek, 2 major media players chipsets Mfg

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calvin_ng
post Oct 4 2010, 03:40 PM

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try Xtreamer Pro
anfieldude
post Oct 14 2010, 08:37 PM

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Just a heads up. The new RTK 1283+ chipset also does not pass BTB and WTW. There is heavy clipping of white before reference white 235. It starts to cut off at 232. Also there is additional EE/Sharpening on the RTK. Still undefeatable. However, the sharpening/EE is not as bad as the older chip.

This post has been edited by anfieldude: Oct 14 2010, 08:38 PM
arremie
post Nov 2 2010, 12:45 AM

hmm...
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bro i have no idea what u talked about. guess ur communication level way advanced for me to understand.
anfieldude
post Nov 2 2010, 07:28 AM

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QUOTE(arremie @ Nov 2 2010, 12:45 AM)
bro i have no idea what u talked about. guess ur communication level way advanced for me to understand.
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arremie,

I will put it in simpler terms.

Film/Video is encoded at more or less fixed white and black levels. Video reference black is at digital level 16. Reference white is at digital level 235. Proper displays should show all details from 17 - 234. Means that the display should be capable of showing all encoded levels. What you do not want is clipping of levels anywhere in ur chain.

In this case, the RTK chipset, clips white information at above 232. This means for bright scenes u will see less details in RTK chipsets.

BTB - blacker than black (below 16) , WTW - whiter than white (above 235). This is considered headroom area for video. If the display chain has headroom, u can use brightness and contrast to adjust ur levels correctly, else its a stab in the dark as to where to set brightness and contrast.

Sharpness. HD shd not need any more sharpening, what u want is for the player to reproduce details without artifacts. RTK chipsets has additional sharpening that can manifest itself as artefacts and could actually obscure fine detail while seemingly sharp (fake).
arremie
post Nov 2 2010, 02:05 PM

hmm...
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Understood. Does this mean Sigma doesn't has this problem?
anfieldude
post Nov 2 2010, 08:18 PM

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QUOTE(arremie @ Nov 2 2010, 02:05 PM)
Understood. Does this mean Sigma doesn't has this problem?
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Correct, Sigma does not have this problem. Sigmas problems were colour decoding errors when not properly flagged. However, with the release of Sigma SDK 2.0, this problem was fixed. WDTV Live last firmware update in April fixed this problem and so did Dune in their latest beta. I am not sure of the rest.
ruffstuff
post Nov 14 2010, 01:30 AM

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guys, can these player stream files over network? Any performance issues for mkv files with high bitrate?
SUSOptiplex330
post Nov 14 2010, 05:58 AM

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QUOTE(anfieldude @ Nov 2 2010, 07:28 AM)

Sharpness. HD shd not need any more sharpening, what u want is for the player to reproduce details without artifacts. RTK chipsets has additional sharpening that can manifest itself as artefacts and could actually obscure fine detail while seemingly sharp (fake).
From my understanding of taking digital photos with digital cameras. More detail and sharpness are not necessary the same thing. With more details, you can zoom the picture up and you can still see the details. With sharpness, not necessarily so and in fact for some, when you zoom up, the picture quality deteriorates very fast.

My 2 sen.

anfieldude
post Nov 14 2010, 12:50 PM

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QUOTE(Optiplex330 @ Nov 14 2010, 05:58 AM)
From my understanding of taking digital photos with digital cameras. More detail and sharpness are not necessary the same thing. With more details, you can zoom the picture up and you can still see the details. With sharpness, not necessarily so and in fact for some, when you zoom up, the picture quality deteriorates very fast.

My 2 sen.
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U r exactly right. If the display and the source player can correctly resolve an 1080p signal, then the details is preserved. However, if there is artificial sharpening, fine detail can be obscured by artifacts that are detrimental to pq.
eTerNiTyw2o4
post Nov 17 2010, 05:38 PM

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QUOTE(anfieldude @ Nov 2 2010, 04:18 AM)
Correct, Sigma does not have this problem. Sigmas problems were colour decoding errors when not properly flagged. However, with the release of Sigma SDK 2.0, this problem was fixed. WDTV Live last firmware update in April fixed this problem and so did Dune in their latest beta. I am not sure of the rest.
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Anfieldude let me ask you something. As I am in the market for a player is what you described as noticible? Because price point is very important to me as a consumer. I also did a little research on iboum's website and I found that Realtek is coming out with new chips. Supposedly these are better?
anfieldude
post Nov 17 2010, 06:38 PM

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QUOTE(eTerNiTyw2o4 @ Nov 17 2010, 05:38 PM)
Anfieldude let me ask you something. As I am in the market for a player is what you described as noticible? Because price point is very important to me as a consumer. I also did a little research on iboum's website and I found that Realtek is coming out with new chips. Supposedly these are better?
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Do u mean the additional sharpening and the inability to pass BTB and WTW?

If ur screen is big enuf and more importantly if u r a person who is picky,yes, else to 99% of the population-no!
eTerNiTyw2o4
post Nov 19 2010, 06:01 PM

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QUOTE(anfieldude @ Nov 17 2010, 02:38 AM)
Do u mean the additional sharpening and the inability to pass BTB and WTW?

If ur screen is big enuf and more importantly if u r a person who is picky,yes, else to 99% of the population-no!
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Yes to the sharpening and the inability to pass BTB and WTW. What I'm asking is it a very big difference on my 52" or is it a really small difference that I can't tell unless I really focus on it?
anfieldude
post Nov 20 2010, 04:37 PM

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QUOTE(eTerNiTyw2o4 @ Nov 19 2010, 06:01 PM)
Yes to the sharpening and the inability to pass BTB and WTW. What I'm asking is it a very big difference on my 52" or is it a really small difference that I can't tell unless I really focus on it?
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Inability to pass BTB and WTW just makes it difficult to set the brightness and contrast correctly. Crushing whites u might notice when u see bright images seeming to lose details. The sharpening, I doubt, depending on ur seating distance, u might even like it.
hosiery2u
post Dec 8 2010, 05:41 PM

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Normal 720P video, i think the RTK chipsets is just doing fine, but when talk about the full HD 1080P, then the Sigma will be the only recommended chipsets for me. RTK just won't do the job nicely, you see see it through PQ!
-JC-
post Dec 10 2010, 10:00 PM

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can anyone recommend me a media player? i've read this thread and dont understand more than half of it. budget of not more than rm500?


thanks! biggrin.gif
Skylinestar
post Dec 10 2010, 10:41 PM

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QUOTE(-JC- @ Dec 10 2010, 10:00 PM)
can anyone recommend me a media player? i've read this thread and dont understand more than half of it. budget of not more than rm500?
thanks! biggrin.gif
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going to play rmvb? if yes, look for yangxi. rclxms.gif

if you don't need rmvb, just settle for a WDTV. icon_rolleyes.gif

This post has been edited by Skylinestar: Dec 10 2010, 10:42 PM
Sting Ray
post Dec 11 2010, 10:17 AM

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QUOTE(-JC- @ Dec 10 2010, 10:00 PM)
can anyone recommend me a media player? i've read this thread and dont understand more than half of it. budget of not more than rm500?
thanks! biggrin.gif
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if you don't need networking features, then check out AC Ryan POHD Essential. you can go to Digital Lifestyle Expo at KLCC where it is selling at $299

http://forum.lowyat.net/index.php?act=ST&f...0#entry34737325


yangxi
post Dec 11 2010, 10:48 AM

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just a Realtek 1055 chipset (below RM250 can get). without lan.


kongaik78
post Dec 12 2010, 09:30 AM

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yesterday i went to KL and browse around the media player market in low yat, saw a lot of brands like Vbridge, Kwo, Phantom, Meio? But no HiMedia. Actually is there any media player today offers internet browser? I want to use it to surf some internet like reading thestar.com.my

Please help
FusionTechSupply
post Dec 13 2010, 02:06 AM

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QUOTE(kongaik78 @ Dec 12 2010, 09:30 AM)
yesterday i went to KL and browse around the media player market in low yat, saw a lot of brands like Vbridge, Kwo, Phantom, Meio? But no HiMedia. Actually is there any media player today offers internet browser? I want to use it to surf some internet like reading thestar.com.my

Please help
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Try to go to Digital Mall PJ. Go to either Czone (Ah Boy) or AonePlus (Aven). Ask for the media player with Android 2.1 OS built in called 'HDX Bone'.

It can be used not only for surfing internet, but to check email, facebook, msn, download movie, stream movie, play 'Angry Bird'. IT can even do your Excel and Word document. Just like a PC.

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