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metaleonid

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Join date
27-Sep-2013
Last activity
13-Apr-2017
Posts
20

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Post
#674684
Topic
High-End video capture cards
Time

metaleonid said:

The problem is that Blackmagic Intensity Shuttle for Thunderbolt drops (or should I say skips) the frames at random without informing the end user. If it doesn't report dropped (skipped) frames, how would anyone know that the frames dropped? Of course there's no way.

 

I will have to probably take it back regarding Blackmagic Intensity Shuttle. Most likely it was Panasonic DMR-ES25 that wouldn't process all the frames and would skip frames randomly. I used Panasonic DMR-ES25 as a middleman between my LD player's composite output and Blackmagic Intensity shuttle device. Recently I put Panasonic DMR-ES25 in between my VCR and LifeView FlyVideo 3000FM capture card and noticed a few skipped frames.

I will dig further and report what I will have found.

Post
#669810
Topic
High-End video capture cards
Time

Hi,

 

I have 15" MacBookPro with 500Gb SSD. I did test capture with HD 1080i as well as 720p. My HD can handle it. I also have the setting to stop capture if dropped frame is detected.

I will however try to set it to insert a blank frame.

 

But my question to you is, are you certain that your BM doesn't drop the frame? If I weren't doing simultaneous capture, I wouldn't be able to find this out. I suggest you do the capture with BM and either at the same time or after that do the same with "proven technology" (i.e. VirtualDub). See if you got skipped frame.

 

As for S-Video, I tried both DVP 649 DVD player and LD-S2 Pioneer Elite LaserDisc player. I didn't like the results at all. Diamond VC500 gave much better results.

Another thing is that Intensity Shuttle might indeed be different from Pro or Extreme.

 

--Leonid

Post
#669791
Topic
High-End video capture cards
Time

I owe Blackmagic Intensity Shuttle for Thunderbolt. I am sure that the chip/hardware is the same as that on Pro and Extreme.

The problem is that Blackmagic Intensity Shuttle for Thunderbolt drops (or should I say skips) the frames at random without informing the end user. If it doesn't report dropped (skipped) frames, how would anyone know that the frames dropped? Of course there's no way.

 

But because I am doing simultaneous capture from my LD player to BM via Composite in to DMR-ES25 (Component out to BM) and the 2nd capture to VC500 via S-Video out, I can compare the end results. Out of 5 such simultaneous captures for an hour video, one time everything matched, 3 times BM lost 4 frames and 1 time BM lost 2 frames.

After that I also captured using ATI 750 HD PCIe. The end result matched with VC500. 

 

In addition while BM gives very descent quality using Component inputs, the capture using S-Video plain sucks. For a product that costs roughly $230 vs VC500 $25 or something - this is unacceptable. 

Post
#665419
Topic
Info: Comb Filter Testing
Time

I can encode the capture into mpeg 2 and post it here. In a mean time I can tell you that it was LD VE, but I wouldn't say a torture-test. If you remember VE LD, they show how someone is trying to fix his home equipment with a screw driver and has achieved shortage doing it - everything goes white and then the next scene shows a house at night. So during the dark scene it would take a few frames to adjust the darker scene: it goes bright then darker, darker darker, back to normal. So it was not a test pattern but rather a real footage.

Post
#665378
Topic
Info: Comb Filter Testing
Time

I tested LD Video Essentials with bunch of cards including ATI 750 HD PCIe.

 

Other devices I have used:

Compro VideoMate TV Ultra, ATI 550 Theater PCI, Panasonic DMR-ES25 as path-through to ATI 600 USB and ATI 750 HD PCIe.

I have used Pioneer Elite LD-S2.

Unfortunately ATI 750 HD PCIe triggered AGC problem. This same problem was triggered also by ATI 750 HD USB when I used S-Video out from LD-S2.

 

As far as comb filter goes 750 performed the best from DVD test captures. However, on LD VE capture it didn't do as good job perhaps due to the LD noise. IMO, the best comb filter for LD capture was NEC D64083 which is inside Compro VideoMate TV Ultra. However, the entire image is much blurrier than that on ATI cards. I can post images and/or mpeg samples later.

Post
#662247
Topic
Info: Comb Filter Testing
Time

I have 6 capture cards with motion adaptive 3d comb filters. Here are the screen shots of 4 of them. I just got ATI TV Wonder HD 750 PCI-e, but I haven't opened it. Also I haven't bothered with Canopus ADVC-300 since it's DV only.

 

The test is from DVD Digital Video Essential test motion pattern of Snell & Wilcox.

1. Compro VideoMate Ultra capture card. This was the 1st TV Tuner ever made that incorporated motion adaptive 3d comb filter. It's Philips SAA713x based. But comb filter is by NEC D64083.

I think this card has amazing 3d comb filter. There are 3 modes: 2d + noise reduction, 2d + 3d and pure 3d. 2d + 3d is 3d but when it detects motion, it goes to 2d. But overall something is not right with horizontal bars (grey-black instead of white-black) and the fact that the image is a bit blurry. Anyone else noticed it? Other than this is the only card with 3d comb filter that  has manual gain control which can be adjusted.

http://s23.postimg.org/ym1leypyz/Compro_Video_Mate_Ultra.jpg

ATI TV Wonder 550 Pro PCI

http://s2.postimg.org/gndog636x/ATI_Theater_550_Pro.jpg

I don't like this card 'cause it has AGC problems. It blows up whites a little bit as well as black level.

ATI TV Wonder 650 HD USB

The AGC issue is insane on this card. However, for some reasons it didn't show any issues with DVE DVD. Maybe because I use drivers from VisionTek rather than from AMD? I don't know.

http://s17.postimg.org/a1qurocfz/ATI_HD_650_USB.jpg

 

ATI TV Wonder 750 HD USB

Contrary to the claims that this card doesn't have motion adaptive 3d comb filter,  you are wrong. It does. However, it's very weak and settings are not really adjustable. Yes you can adjust them in the Filter settings but the adjustments just don't take effect. This motion adaptive 3d comb filter eliminates dot crawl. It reduces rainbows, but doesn't fully eliminates them.

http://s24.postimg.org/7j147smrp/ATI_HD_750_USB.jpg

 

ATI TV Wonder 750 HD PCI-e - need to install it on my friend's computer and test it. My computer is old and doesn't have PCI-e slot.

To the previous poster _,,,^..^,,,_. Something is not right with your screenshots. How come that for the last Snell & Wilcox picture all screenshots have rainbows and dot crawls. Are you sure you didn't by mistake capture directly using S-Video from the LD player thinking that you routed via the DVD Recorders?