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stefuel
Joined: 07 Mar 2006 Posts: 3353 Location: Green Harbor MA USA
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| Posted: Thu Jun 19, 2008 10:40 am Post subject: |
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| stefuel wrote: | I think my thread has been hijacked by a shameless sales ploy  |
You'll notice that there is a wink here, not a roll eyes, mad face or thumbs down. It was just a friendly jab.
Yes Gary was kind enough to confirm a couple of connections for me that were un-clear from the pictures provided on the Pixel Magic website. I'm sorry if you feel I stabbed you in the back. It was not my intension. Feel free to repost your pictures.
For the record SD SDI did provide some improvement in picture quality. I only considered it because I have a SDI capable scaler and was curious. Would a hard-core videophile need it? Perhaps but knowing what I do now, I would not have gone that route if it required buying a new scaler. I think for me to get wet about HD SDI, it would have to be a direct connection to the projector.
Time to go to work
_________________ Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Gary M. Guest
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| Posted: Thu Jun 19, 2008 5:44 pm Post subject: |
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Chip, maybe I did over react and for that I am sorry, it just rubbed me the wrong way when you replied back like that especially after I had helped you in the past
no harm done, mostly my fault anyway
-Gary
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Gary M. Guest
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| Posted: Thu Jun 19, 2008 5:50 pm Post subject: |
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| ecrabb wrote: | Guys, there is no technical reason (at least that I can think of) that HD-SDI would hold any technical advantage whatsoever over HDMI in a home setting. I don't see the point of getting all wet over a 4:4:4 transport mechanism when your source is 4:2:0 Blu-ray content! Unless some of you are watching your movies on D-5HD masters...
In a high-end spatial processing application like the DVX, I suppose it might make some sense to have a higher-quality transport between processor and blender, but even then... In most of our single-projector systems, there isn't any real need for HD-SDI.... ESPECIALLY between source and processor, since the SDI and HDMI would both see the same data stream.
Now, the physical connector... HDMI sucks in that department... big time.
SC |
there are reasons
those of us who have compared SDI to HDMI on players that offer a 480i HDMI output have always concluded that SDI was better, test patterns show less ringing and noise, colors are more correct
the conversion of most HDMI outputs to 4:4:4 throws the color reproduction slightly off, requiring adjustment to sat/hue for all 3 colors, yes we are splitting hairs here but that is what I am about when it comes to video
also HDCP is inserted into the mix as well
those of us who have found SDI better than 480i HDMI don't really have a explanation as for why, it is seen on test patterns and the above is only a decent guess as to why
HD-SDI applies the same and most importantly, I am going to use it in my personal system to A) get the hghiest quality possible connection from player to scaler and B) use RGBHV output from my scaler to the CRT
HD-SDI also frees up your HDMI port for 100% audio only usage
it's a no brainer for me, better performance, no HDCP, ultimate PQ, freeing of HDMI port for audio
-Gary
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Axatax
Joined: 01 Nov 2006 Posts: 403
TV/Projector: Sony VPH-G70Q (aka Barco Cine8 Onyx)
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| Posted: Thu Jun 19, 2008 7:05 pm Post subject: |
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Another benefit of SDI is instantaneous source switching. No delay like HDMI.
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ecrabb Forum Moderator
Joined: 13 Mar 2006 Posts: 15909 Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Thu Jun 19, 2008 8:20 pm Post subject: |
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| Gary M. wrote: | those of us who have compared SDI to HDMI on players that offer a 480i HDMI output have always concluded that SDI was better, test patterns show less ringing and noise, colors are more correct
the conversion of most HDMI outputs to 4:4:4 throws the color reproduction slightly off, requiring adjustment to sat/hue for all 3 colors, yes we are splitting hairs here but that is what I am about when it comes to video |
That's fine, but in that case, were you fairly, truly and directly comparing HD SDI and HDMI themselves, or were you simply comparing the implementation of each transport in one particular source device (and one particular target device for that matter)? I'd lean toward the latter.
Was this a factory-engineered piece, or a mod? How about the HDMI implementation in the source... Could it have been flawed? What was the source device? What about the target device... The decoder that was actually decoding the HDMI vs. HD-SDI signal... Was the HDMI implementation known-good in that device? Perhaps the implementation there was less than ideal. So many variables.
SC
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Gary M. Guest
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| Posted: Thu Jun 19, 2008 8:53 pm Post subject: |
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yes that is the point, HD-SDI eliminates variables and possible PQ pitfalls, why mess around ?
-Gary
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energeezer
Joined: 08 Aug 2007 Posts: 67
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| Posted: Fri Jun 20, 2008 1:40 am Post subject: |
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Gary
The reason for the infighting on this thread is fairly simple. There are three main groups of CRT'ers IMO. Each of these groups is passionate about their hobby and convinced they have made the correct choice in displays.
1) Those who want the best bang for the buck which is why they are not using digital.
2) Those who want the best image they can possibly get but without breaking the bank doing it. Guys like myself
3) Those who feel CRT still delivers the best image even when cost in virtually no object. Guys like Gino, Cliff and possibly yourself.
It is really a no brainer that scalers have their place. Its a fact that they can, and in most cases do, add some measure of image quality as well as flexibility. As long as people want the most from the system, and are willing to spend a little more, scalers will have their place.
I've had some dealings with you and I am very happy with all of them whether it was my seeking information or the purchase of an SDI modded SD DVDP. You always encourage me to get the better product but the truth is that since I am in group 2 this is not always in my plans. I realize your motivation as you are in group 3 and running a business. If my financial means were better I would be in group 3 as well.
It seems some people are so passionate that they have made the correct decisions that they don't want to hear the logic behind the motivations of others.
I believe that the bottom line for all of us is that there is no wrong group and the truth is that in most cases a scaler is not always viable for group 1. I also believe that group 1 is the bulk of the users and is what really keeps CRT going by keeping the market alive. Without group 1 we would lose guys like Curt, Moome and others. Once they are gone the hobby will die for most of us.
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Phil Smith
Joined: 08 Mar 2006 Posts: 7717
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| Posted: Fri Jun 20, 2008 2:10 am Post subject: |
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Steve,
There's one more group - those that don't believe the hype.
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Gary M. Guest
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| Posted: Fri Jun 20, 2008 2:57 am Post subject: |
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| energeezer wrote: | Gary
The reason for the infighting on this thread is fairly simple. There are three main groups of CRT'ers IMO. Each of these groups is passionate about their hobby and convinced they have made the correct choice in displays.
1) Those who want the best bang for the buck which is why they are not using digital.
2) Those who want the best image they can possibly get but without breaking the bank doing it. Guys like myself
3) Those who feel CRT still delivers the best image even when cost in virtually no object. Guys like Gino, Cliff and possibly yourself.
It is really a no brainer that scalers have their place. Its a fact that they can, and in most cases do, add some measure of image quality as well as flexibility. As long as people want the most from the system, and are willing to spend a little more, scalers will have their place.
I've had some dealings with you and I am very happy with all of them whether it was my seeking information or the purchase of an SDI modded SD DVDP. You always encourage me to get the better product but the truth is that since I am in group 2 this is not always in my plans. I realize your motivation as you are in group 3 and running a business. If my financial means were better I would be in group 3 as well.
It seems some people are so passionate that they have made the correct decisions that they don't want to hear the logic behind the motivations of others.
I believe that the bottom line for all of us is that there is no wrong group and the truth is that in most cases a scaler is not always viable for group 1. I also believe that group 1 is the bulk of the users and is what really keeps CRT going by keeping the market alive. Without group 1 we would lose guys like Curt, Moome and others. Once they are gone the hobby will die for most of us. |
agree 100% Steve, although I am in no way enough of a big leaguer to hit Cliff Gino levels, money is the issue for me for sure
I may be wrong thinking this but I didn't think cost was relevant in discussing what a scaler brings to the table, people in this thread were saying scalers were flat out not needed and brought nothing, when they were pretty much proven to be a big addition the talk switched to they are overly expensive anyway, so they are still not worth it, get my drift?
people may think I am rich but I am not, I am a college kid with a very small business, what people don't realize is that I am a beta tester and hardware reviewer for companies/websites and sometimes get free gear in the process
-Gary
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Gary M. Guest
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| Posted: Fri Jun 20, 2008 3:00 am Post subject: |
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| Phil Smith wrote: | Steve,
There's one more group - those that don't believe the hype.  |
there is yet another group that thinks that everything they don't have, can't afford, don't want or see others enjoying is hype and write it off as such
-Gary
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energeezer
Joined: 08 Aug 2007 Posts: 67
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| Posted: Fri Jun 20, 2008 3:28 am Post subject: |
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| Gary M. wrote: |
I may be wrong thinking this but I didn't think cost was relevant in discussing what a scaler brings to the table, people in this thread were saying scalers were flat out not needed and brought nothing, when they were pretty much proven to be a big addition the talk switched to they are overly expensive anyway, so they are still not worth it, get my drift?
-Gary |
I think it has been established that scalers are viable but not cost effective for everyone. Too bad so much bad blood and uncalled for comments happened along the way.
BTW
I just bought a scaler but in my usual tradition I did not go for a VP50Pro but went budget with some compromises and ended up with a unit that I know will do 90% of what I want and possibly 100%. Got the thing so cheap that it really does not matter. I'll sell it for more or at least break even if I have to and then decide if i want to spend some more $ on a level up.
It will do Gamma-something I wanted and could not get even with the VP50
It will de-interlace 1080i input
It will transcode
and if I'm real lucky it will allow me to go from 1080p/24 to 1920 X 800p/48 or 60.
https://www.curtpalme.com/forum_archived/viewtopic.php@t=10190.html
Does it have the best available de-interlacing---No but good enough for me I hope
Will it output 1080p@60 - No but my XG can not take that properly anyway. I'll be happy if it will let me take 1080p/24 from my PS3 and scale to 800/48 or 60 since my XG will not allow 1080p/60 from PS3 due timing issues. I want my HD without interlace fields. (1080i)
For me the bottom line is that it is a new toy I can play with and possibly reap some gains. If not I can sell it for what I paid and move on. I'll get a feel for the Lumagen product and be able to compare to my experience with DVDO HD+.
Either way I figure I win.
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Phil Smith
Joined: 08 Mar 2006 Posts: 7717
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| Posted: Fri Jun 20, 2008 3:38 am Post subject: |
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I don't like saying stuff like this, but since you guys keep hammering on it:
I'm ok in the money department, at least when it comes to affording HT gear. I could pay cash for whatever I want, whenever I want, and never notice the money was gone. I'm sure this is true of many other forum members.
Just as I said, some of us don't believe the hype, and/or just don't want it or feel like we need it.
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Gary M. Guest
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| Posted: Fri Jun 20, 2008 4:02 am Post subject: |
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| Phil Smith wrote: | I don't like saying stuff like this, but since you guys keep hammering on it:
I'm ok in the money department, at least when it comes to affording HT gear. I could pay cash for whatever I want, whenever I want, and never notice the money was gone. I'm sure this is true of many other forum members.
Just as I said, some of us don't believe the hype, and/or just don't want it or feel like we need it. |
so what you are admitting is that you can afford better PQ at anytime and you are happy enough to be sitting in mediocrity?
you are no videophile Phil! boo, no good
-Gary
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VideoGrabber
Joined: 09 Apr 2006 Posts: 933 Location: Michigan
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| Posted: Fri Jun 20, 2008 5:07 am Post subject: |
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> There are three main groups of CRT'ers IMO. <
Steve, well said.
> There's one more group - those that don't believe the hype. <
Phil, nothing wrong with being a skeptical "show me" guy. If someday someone can demonstrate to you a bona-fide advantage to a VP that improves your viewing situation, I suspect you'll join the ranks of the believers. Until then I'm sure you'll get along fine without one.
> what you are admitting is that you can afford better PQ at anytime and you are happy enough to be sitting in mediocrity? <
Gary, he only admitted that he could afford it IF he was convinced it really offered the better PQ you claimed it does. He's not convinced, and your denigrating him isn't likely to change that situation. There are more effective persuasion techniques. Like producing a compelling list of substantive advantages.
_________________ - Tim
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VideoGrabber
Joined: 09 Apr 2006 Posts: 933 Location: Michigan
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| Posted: Fri Jun 20, 2008 5:42 am Post subject: |
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Gino asked:
> Can't output interlaced other than 1080 lines? That's news to me, why can't they? <
Perhaps because they didn't think it was worth implementing? I don't know. You'd think it was fairly logical that they could, but apparently not.
I should probably clarify that my comment on this limitation was based on the iScans and Lumagens I was familiar with. The VP50 may or may not have this capability, though it's way out of my price range. I will say that ABT/DVDO does nothing in their documentation to make finding the answer to this type of question easy. In fact, you have to go to other sources (e.g. Greg Rogers' review) to find out that the VP30 does averaging field-scaling for 1080i inputs, and can't frame-lock them to avoid judder, so its use for HD inputs is significantly constrained. Which is a shame, since used ones are starting to show up at decent prices. I like the I/O management and lipsync on the DVDOs a lot, but the similarly-priced (used) Lumagens are superior in processing HD sources. Both are excellent companies.
Personal correspondence with Jim Peterson over at Lumagen last winter...
Me: > Which of the Visions (if any) can output interlaced at other than 1080?
Jim: > None. Only 1080i is supported for interlaced output.
I have no clue what the CrystalIO can do, but it's a moot question for me.
_________________ - Tim
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Gino
Joined: 22 Apr 2006 Posts: 1363 Location: Trinity Beach, AUSTRALIA
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| Posted: Fri Jun 20, 2008 5:58 am Post subject: |
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| Phil Smith wrote: | I don't like saying stuff like this, but since you guys keep hammering on it:
I'm ok in the money department, at least when it comes to affording HT gear. I could pay cash for whatever I want, whenever I want, and never notice the money was gone. I'm sure this is true of many other forum members.
Just as I said, some of us don't believe the hype, and/or just don't want it or feel like we need it. |
I'm sorry Phil but this is just BS. Having the VP50Pro and the Radiance in my chain is not hype. Money no object? Then come down here and see for yourself what sorts of improvements I gain from these over just going direct.
_________________ ( B ) ( G ) ( R ) Blendzilla Down Under ( R ) ( G ) ( B ) - Tubes of Fury
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Gino
Joined: 22 Apr 2006 Posts: 1363 Location: Trinity Beach, AUSTRALIA
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| Posted: Fri Jun 20, 2008 6:02 am Post subject: |
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| VideoGrabber wrote: | Gino asked:
> Can't output interlaced other than 1080 lines? That's news to me, why can't they? <
Perhaps because they didn't think it was worth implementing? I don't know. You'd think it was fairly logical that they could, but apparently not.
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I'd be suprised if the VP50's couldn't, they allow so many crazy porch settings and frame rates, seemed to be as tweakable as a htpc. Unfortunately playing with these sorts of things is no fun in my setup so I cannot test for you. Now that I have everything setup just right I don't want to muck about with my config.
_________________ ( B ) ( G ) ( R ) Blendzilla Down Under ( R ) ( G ) ( B ) - Tubes of Fury
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Gary M. Guest
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| Posted: Fri Jun 20, 2008 6:33 am Post subject: |
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| Gino wrote: | | VideoGrabber wrote: | Gino asked:
> Can't output interlaced other than 1080 lines? That's news to me, why can't they? <
Perhaps because they didn't think it was worth implementing? I don't know. You'd think it was fairly logical that they could, but apparently not.
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I'd be suprised if the VP50's couldn't, they allow so many crazy porch settings and frame rates, seemed to be as tweakable as a htpc. Unfortunately playing with these sorts of things is no fun in my setup so I cannot test for you. Now that I have everything setup just right I don't want to muck about with my config. |
they can do interlaced at whatever and as you said they (DVDO) are 100% as tweakable as powerstrip for HTPC, identical nearly
I know what you mean about mucking with a good config Gino, I love to get mine set after weeks of fixing and never touch it for months
-Gary
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nomadII
Joined: 16 Jun 2006 Posts: 252
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| Posted: Fri Jun 20, 2008 10:03 am Post subject: |
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I fully understand the "hold the price at X" mentality. I am however mystified by the "can't possibly be improved on" judgements thrown around by people with no exposure to what is being discussed.
Real problem here is that the "don't believe the hype" crowd said the same thing about HD-DVD, Blu-Ray & whatever the hell that tape format was.
By no means limited to Dallas only , but cannot remember how many times I was told that no source could possibly improve PQ enough to warrant the cash outlay beyond what was once considered state of the art upconversion.
Phil, I am not singling anyone out. Unless everyone here pulled a Sandy Berger it should all still be in the archives.
Hey Haflich, what the hell documents did Berger remove from the Library of Congress anyway??
There were other notables: "No way an 8" can resolve 1080P" etc.
People were declaritive, authoratative & dead ass wrong!!
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Gino
Joined: 22 Apr 2006 Posts: 1363 Location: Trinity Beach, AUSTRALIA
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| Posted: Fri Jun 20, 2008 2:01 pm Post subject: |
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| Gary M. wrote: | I know what you mean about mucking with a good config Gino, I love to get mine set after weeks of fixing and never touch it for months  |
Yes, but the tricky bit in my setup is the Radiance needs to play nice with the VP50Pro which needs to play nice with the DVX. sometimes one small adjustment can throw things out of whack
_________________ ( B ) ( G ) ( R ) Blendzilla Down Under ( R ) ( G ) ( B ) - Tubes of Fury
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