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  1. I'll continue to edit these posts to add more stuff over the next while.

    [Explanation of methods goes here]

    Issues/features chart

    The pictures are huge (1724x764) because of all the scopes I included. I recommend opening each in its own tab at full-size and flipping back and forth between them to easily see the difference. I use Firefox with the Tab Wheel Scroll extension set to the reverse direction from default so that I can just flip the wheel a bit instead of having to move the mouse and click.

    The idea here is that you compare the images marked Reference to the images captured from each device. The most "accurate" device is whichever is most similar to the reference.

    The Philips DVP642 player that I used for the DVD patterns unfortunately clips superblacks and the very top superwhites.

    I added white borders around the images to align them rather than cropping, so you can see the area that each device captures. Some of them start at NTSC line 22, most at line 23, and the ATI 750 has the stupidest line range of them all because it starts at line 24. That means it captures the bottom half-line (525), and then extends outside the active picture area -- the bottom row of pixels is always superblack mixed with garbage chroma data!

    Hmm. The VC500 & EZGrabber2 appear to have some issue with intraframe levels (that's my attempt at distilling the problem to two words). For example: when calibrated for DVD shot 3, the levels are wrong in DVD shot 1, and vice-versa.

    The ATI 600 adds a slight green tint to everything, including greyscale patterns. The ATI 750 adds a slight orange tint to colors.

    The HD AV Grabber is pure garbage.
    Image Attached Files
    Last edited by vaporeon800; 31st Aug 2014 at 10:51.
    Quote Quote  
  2. Reserved1... missed posting on the 3-year anniversary by seconds on the west coast. Shouldn't have doddled.

    [Non-VHS screenshots go here]

    For the simpler patterns, the PNG filesizes offer some measurement of how losslessly-compressible the videos are, relative to noise levels (DNR has been disabled, where possible -- some amount may still be in effect; need a good test). All were created with VirtualDubMod's built-in PNG save feature.

    Source: DPS-470AV "10-bit Test Signal Generator" mode

    SDI 10-bit → VirtualDub 8-bit
    Click image for larger version

Name:	DPS-470AV_VDubYUY2_1.png
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ID:	21602

    SDI → HDMI 8-bit (superblacks were clipped by the HyperDeck Shuttle 2's HDMI conversion; that's annoying)
    Click image for larger version

Name:	DPS-470AV_HDS2_C027_1.png
Views:	947
Size:	17.0 KB
ID:	21600 Click image for larger version

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Views:	917
Size:	13.4 KB
ID:	21987 Click image for larger version

Name:	DPS-470AV_HDS2_C027_5.png
Views:	884
Size:	13.8 KB
ID:	21988 Click image for larger version

Name:	DPS-470AV_HDS2_C027_8.png
Views:	889
Size:	14.6 KB
ID:	21989 Click image for larger version

Name:	DPS-470AV_HDS2_C027_3.png
Views:	889
Size:	13.6 KB
ID:	21986 Click image for larger version

Name:	DPS-470AV_HDS2_C027_9.png
Views:	887
Size:	17.6 KB
ID:	21990 Click image for larger version

Name:	DPS-470AV_HDS2_C027_6.png
Views:	942
Size:	19.6 KB
ID:	21612 Click image for larger version

Name:	DPS-470AV_HDS2_C027_7.png
Views:	942
Size:	21.0 KB
ID:	21608 Click image for larger version

Name:	DPS-470AV_HDS2_C027_2.png
Views:	877
Size:	14.9 KB
ID:	21991

    Reference: SDI 10-bit FFVideoSource 8-bit
    Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_1.png
Views:	933
Size:	18.2 KB
ID:	21621 Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_4.png
Views:	886
Size:	14.4 KB
ID:	21970 Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_5.png
Views:	867
Size:	14.7 KB
ID:	21968 Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_8.png
Views:	932
Size:	15.6 KB
ID:	21982 Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_3.png
Views:	877
Size:	14.6 KB
ID:	21971 Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_9.png
Views:	878
Size:	18.9 KB
ID:	21983 Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_6.png
Views:	911
Size:	20.6 KB
ID:	21623 Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_7.png
Views:	912
Size:	22.1 KB
ID:	21622 Click image for larger version

Name:	DPS-470AV_FFVideoYUY2_2.png
Views:	889
Size:	15.9 KB
ID:	21969

    Diamond VC500
    Click image for larger version

Name:	DPS-470AV_VC500_1.png
Views:	964
Size:	369.6 KB
ID:	21595 Click image for larger version

Name:	DPS-470AV_VC500_4.png
Views:	878
Size:	221.0 KB
ID:	22002 Click image for larger version

Name:	DPS-470AV_VC500_5.png
Views:	879
Size:	355.5 KB
ID:	21999 Click image for larger version

Name:	DPS-470AV_VC500_8.png
Views:	890
Size:	333.6 KB
ID:	22003 Click image for larger version

Name:	DPS-470AV_VC500_3.png
Views:	875
Size:	274.5 KB
ID:	21998 Click image for larger version

Name:	DPS-470AV_VC500_9.png
Views:	873
Size:	379.4 KB
ID:	22001 Click image for larger version

Name:	DPS-470AV_VC500_6.png
Views:	907
Size:	482.9 KB
ID:	21607 Click image for larger version

Name:	DPS-470AV_VC500_7.png
Views:	905
Size:	593.9 KB
ID:	21616 Click image for larger version

Name:	DPS-470AV_VC500_2.png
Views:	858
Size:	457.5 KB
ID:	22000

    Mygica EZGrabber2
    Click image for larger version

Name:	DPS-470AV_EZGrabber2_1.png
Views:	914
Size:	326.3 KB
ID:	21596 Click image for larger version

Name:	DPS-470AV_EZGrabber2_4.png
Views:	846
Size:	242.5 KB
ID:	21967 Click image for larger version

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Views:	842
Size:	342.0 KB
ID:	21964 Click image for larger version

Name:	DPS-470AV_EZGrabber2_8.png
Views:	840
Size:	316.0 KB
ID:	21980 Click image for larger version

Name:	DPS-470AV_EZGrabber2_3.png
Views:	836
Size:	269.9 KB
ID:	21965 Click image for larger version

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Views:	839
Size:	291.0 KB
ID:	21981 Click image for larger version

Name:	DPS-470AV_EZGrabber2_6.png
Views:	879
Size:	470.0 KB
ID:	21611 Click image for larger version

Name:	DPS-470AV_EZGrabber2_7.png
Views:	859
Size:	581.6 KB
ID:	21617 Click image for larger version

Name:	DPS-470AV_EZGrabber2_2.png
Views:	827
Size:	338.6 KB
ID:	21966

    ATI 600 USB
    Click image for larger version

Name:	DPS-470AV_ATI600_1.png
Views:	907
Size:	505.0 KB
ID:	21598 Click image for larger version

Name:	DPS-470AV_ATI600_4.png
Views:	819
Size:	405.4 KB
ID:	21958 Click image for larger version

Name:	DPS-470AV_ATI600_5.png
Views:	806
Size:	415.5 KB
ID:	21956 Click image for larger version

Name:	DPS-470AV_ATI600_8.png
Views:	808
Size:	495.7 KB
ID:	21976 Click image for larger version

Name:	DPS-470AV_ATI600_3.png
Views:	793
Size:	482.7 KB
ID:	21959 Click image for larger version

Name:	DPS-470AV_ATI600_9.png
Views:	803
Size:	477.8 KB
ID:	21977 Click image for larger version

Name:	DPS-470AV_ATI600_6.png
Views:	839
Size:	532.1 KB
ID:	21618 Click image for larger version

Name:	DPS-470AV_ATI600_7.png
Views:	833
Size:	709.7 KB
ID:	21610 Click image for larger version

Name:	DPS-470AV_ATI600_2.png
Views:	793
Size:	531.5 KB
ID:	21957

    danno78 XCard (AVerMedia hardware)
    Click image for larger version

Name:	DPS-470AV_XCard_1.png
Views:	828
Size:	335.5 KB
ID:	21601 Click image for larger version

Name:	DPS-470AV_XCard_4.png
Views:	781
Size:	277.0 KB
ID:	22008 Click image for larger version

Name:	DPS-470AV_XCard_5.png
Views:	783
Size:	327.5 KB
ID:	22005 Click image for larger version

Name:	DPS-470AV_XCard_8.png
Views:	772
Size:	347.1 KB
ID:	22009 Click image for larger version

Name:	DPS-470AV_XCard_3.png
Views:	766
Size:	274.8 KB
ID:	22004 Click image for larger version

Name:	DPS-470AV_XCard_9.png
Views:	769
Size:	279.1 KB
ID:	22007 Click image for larger version

Name:	DPS-470AV_XCard_6.png
Views:	824
Size:	482.1 KB
ID:	21615 Click image for larger version

Name:	DPS-470AV_XCard_7.png
Views:	825
Size:	556.7 KB
ID:	21609 Click image for larger version

Name:	DPS-470AV_XCard_2.png
Views:	767
Size:	358.2 KB
ID:	22006

    Easycap STK1160
    Click image for larger version

Name:	DPS-470AV_STK1160_1.png
Views:	826
Size:	416.0 KB
ID:	21599 Click image for larger version

Name:	DPS-470AV_STK1160_4.png
Views:	759
Size:	289.3 KB
ID:	21996 Click image for larger version

Name:	DPS-470AV_STK1160_5.png
Views:	781
Size:	320.9 KB
ID:	21993 Click image for larger version

Name:	DPS-470AV_STK1160_8.png
Views:	744
Size:	268.4 KB
ID:	21997 Click image for larger version

Name:	DPS-470AV_STK1160_3.png
Views:	765
Size:	277.6 KB
ID:	21992 Click image for larger version

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Views:	759
Size:	347.7 KB
ID:	21995 Click image for larger version

Name:	DPS-470AV_STK1160_6.png
Views:	784
Size:	398.0 KB
ID:	21604 Click image for larger version

Name:	DPS-470AV_STK1160_7.png
Views:	800
Size:	717.2 KB
ID:	21606 Click image for larger version

Name:	DPS-470AV_STK1160_2.png
Views:	751
Size:	480.3 KB
ID:	21994

    ATI 750 USB
    Click image for larger version

Name:	DPS-470AV_ATI750_1.png
Views:	819
Size:	234.8 KB
ID:	21597 Click image for larger version

Name:	DPS-470AV_ATI750_4.png
Views:	745
Size:	206.4 KB
ID:	21962 Click image for larger version

Name:	DPS-470AV_ATI750_5.png
Views:	803
Size:	221.9 KB
ID:	21960 Click image for larger version

Name:	DPS-470AV_ATI750_8.png
Views:	734
Size:	173.9 KB
ID:	21978 Click image for larger version

Name:	DPS-470AV_ATI750_3.png
Views:	759
Size:	134.2 KB
ID:	21963 Click image for larger version

Name:	DPS-470AV_ATI750_9.png
Views:	731
Size:	212.8 KB
ID:	21979 Click image for larger version

Name:	DPS-470AV_ATI750_6.png
Views:	771
Size:	253.0 KB
ID:	21605 Click image for larger version

Name:	DPS-470AV_ATI750_7.png
Views:	774
Size:	405.2 KB
ID:	21614 Click image for larger version

Name:	DPS-470AV_ATI750_2.png
Views:	740
Size:	276.0 KB
ID:	21961

    HD AV Grabber
    Click image for larger version

Name:	DPS-470AV_HDAVGrabber_1.png
Views:	814
Size:	400.9 KB
ID:	21594 Click image for larger version

Name:	DPS-470AV_HDAVGrabber_4.png
Views:	747
Size:	379.8 KB
ID:	21974 Click image for larger version

Name:	DPS-470AV_HDAVGrabber_5.png
Views:	733
Size:	387.5 KB
ID:	21972 Click image for larger version

Name:	DPS-470AV_HDAVGrabber_8.png
Views:	755
Size:	499.3 KB
ID:	21984 Click image for larger version

Name:	DPS-470AV_HDAVGrabber_3.png
Views:	740
Size:	460.3 KB
ID:	21975 Click image for larger version

Name:	DPS-470AV_HDAVGrabber_9.png
Views:	751
Size:	382.3 KB
ID:	21985 Click image for larger version

Name:	DPS-470AV_HDAVGrabber_6.png
Views:	798
Size:	654.8 KB
ID:	21603 Click image for larger version

Name:	DPS-470AV_HDAVGrabber_7.png
Views:	873
Size:	609.9 KB
ID:	21613 Click image for larger version

Name:	DPS-470AV_HDAVGrabber_2.png
Views:	808
Size:	437.4 KB
ID:	21973

    Source: VHPatterns2 test DVDR (DVE + Ice Age THX test patterns)

    Reference: DVDYUY2 (interlaced chroma)
    Click image for larger version

Name:	VHPatterns2_DVD_1.png
Views:	755
Size:	406.4 KB
ID:	21648 Click image for larger version

Name:	VHPatterns2_DVD_2.png
Views:	771
Size:	650.0 KB
ID:	21650 Click image for larger version

Name:	VHPatterns2_DVD_3.png
Views:	744
Size:	450.5 KB
ID:	21644 Click image for larger version

Name:	VHPatterns2_DVD_4.png
Views:	771
Size:	769.7 KB
ID:	21643 Click image for larger version

Name:	VHPatterns2_DVD_5.png
Views:	731
Size:	44.6 KB
ID:	21642 Click image for larger version

Name:	VHPatterns2_DVD_6.png
Views:	744
Size:	156.6 KB
ID:	21645 Click image for larger version

Name:	VHPatterns2_DVD_7.png
Views:	718
Size:	71.8 KB
ID:	21647 Click image for larger version

Name:	VHPatterns2_DVD_8.png
Views:	719
Size:	113.1 KB
ID:	21646 Click image for larger version

Name:	VHPatterns2_DVD_9.png
Views:	720
Size:	22.2 KB
ID:	21649

    Diamond VC500
    Click image for larger version

Name:	VHPatterns2_VC500_1.png
Views:	738
Size:	630.8 KB
ID:	21656 Click image for larger version

Name:	VHPatterns2_VC500_2.png
Views:	726
Size:	812.3 KB
ID:	21655 Click image for larger version

Name:	VHPatterns2_VC500_3.png
Views:	733
Size:	536.6 KB
ID:	21653 Click image for larger version

Name:	VHPatterns2_VC500_4.png
Views:	725
Size:	763.1 KB
ID:	21651 Click image for larger version

Name:	VHPatterns2_VC500_5.png
Views:	704
Size:	302.9 KB
ID:	21658 Click image for larger version

Name:	VHPatterns2_VC500_6.png
Views:	691
Size:	430.7 KB
ID:	21657 Click image for larger version

Name:	VHPatterns2_VC500_7.png
Views:	675
Size:	599.2 KB
ID:	21652 Click image for larger version

Name:	VHPatterns2_VC500_8.png
Views:	674
Size:	433.9 KB
ID:	21659 Click image for larger version

Name:	VHPatterns2_VC500_9.png
Views:	687
Size:	377.5 KB
ID:	21654

    Mygica EZGrabber2
    Click image for larger version

Name:	VHPatterns2_EZGrabber2_1.png
Views:	671
Size:	738.8 KB
ID:	21661 Click image for larger version

Name:	VHPatterns2_EZGrabber2_2.png
Views:	672
Size:	904.1 KB
ID:	21660 Click image for larger version

Name:	VHPatterns2_EZGrabber2_3.png
Views:	675
Size:	618.4 KB
ID:	21662 Click image for larger version

Name:	VHPatterns2_EZGrabber2_4.png
Views:	682
Size:	793.2 KB
ID:	21666 Click image for larger version

Name:	VHPatterns2_EZGrabber2_5.png
Views:	664
Size:	388.5 KB
ID:	21665 Click image for larger version

Name:	VHPatterns2_EZGrabber2_6.png
Views:	665
Size:	559.3 KB
ID:	21664 Click image for larger version

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Views:	670
Size:	707.7 KB
ID:	21663 Click image for larger version

Name:	VHPatterns2_EZGrabber2_8.png
Views:	673
Size:	476.9 KB
ID:	21668 Click image for larger version

Name:	VHPatterns2_EZGrabber2_9.png
Views:	660
Size:	481.7 KB
ID:	21667

    ATI 600 USB
    Click image for larger version

Name:	VHPatterns2_ATI600_1.png
Views:	669
Size:	750.8 KB
ID:	21680 Click image for larger version

Name:	VHPatterns2_ATI600_2.png
Views:	664
Size:	872.8 KB
ID:	21679 Click image for larger version

Name:	VHPatterns2_ATI600_3.png
Views:	657
Size:	404.5 KB
ID:	21677 Click image for larger version

Name:	VHPatterns2_ATI600_4.png
Views:	675
Size:	738.4 KB
ID:	21675 Click image for larger version

Name:	VHPatterns2_ATI600_5.png
Views:	660
Size:	528.1 KB
ID:	21682 Click image for larger version

Name:	VHPatterns2_ATI600_6.png
Views:	652
Size:	626.6 KB
ID:	21681 Click image for larger version

Name:	VHPatterns2_ATI600_7.png
Views:	653
Size:	600.9 KB
ID:	21676 Click image for larger version

Name:	VHPatterns2_ATI600_8.png
Views:	658
Size:	495.8 KB
ID:	21683 Click image for larger version

Name:	VHPatterns2_ATI600_9.png
Views:	644
Size:	246.3 KB
ID:	21678

    danno78 XCard (AVerMedia hardware)
    Click image for larger version

Name:	VHPatterns2_XCard_1.png
Views:	655
Size:	536.0 KB
ID:	21672 Click image for larger version

Name:	VHPatterns2_XCard_2.png
Views:	681
Size:	722.2 KB
ID:	21671 Click image for larger version

Name:	VHPatterns2_XCard_3.png
Views:	674
Size:	352.8 KB
ID:	21670 Click image for larger version

Name:	VHPatterns2_XCard_4.png
Views:	659
Size:	596.0 KB
ID:	21669 Click image for larger version

Name:	VHPatterns2_XCard_5.png
Views:	647
Size:	215.5 KB
ID:	21674 Click image for larger version

Name:	VHPatterns2_XCard_6.png
Views:	647
Size:	362.2 KB
ID:	21673 Click image for larger version

Name:	VHPatterns2_XCard_7.png
Views:	644
Size:	482.7 KB
ID:	21684 Click image for larger version

Name:	VHPatterns2_XCard_8.png
Views:	638
Size:	350.2 KB
ID:	21686 Click image for larger version

Name:	VHPatterns2_XCard_9.png
Views:	634
Size:	289.6 KB
ID:	21685

    Easycap STK1160
    Click image for larger version

Name:	VHPatterns2_STK1160_1.png
Views:	655
Size:	597.5 KB
ID:	21692 Click image for larger version

Name:	VHPatterns2_STK1160_2.png
Views:	642
Size:	771.6 KB
ID:	21691 Click image for larger version

Name:	VHPatterns2_STK1160_3.png
Views:	640
Size:	455.7 KB
ID:	21714 Click image for larger version

Name:	VHPatterns2_STK1160_4.png
Views:	643
Size:	718.2 KB
ID:	21687 Click image for larger version

Name:	VHPatterns2_STK1160_5.png
Views:	638
Size:	294.2 KB
ID:	21694 Click image for larger version

Name:	VHPatterns2_STK1160_6.png
Views:	637
Size:	406.0 KB
ID:	21693 Click image for larger version

Name:	VHPatterns2_STK1160_7.png
Views:	634
Size:	462.7 KB
ID:	21688 Click image for larger version

Name:	VHPatterns2_STK1160_8.png
Views:	625
Size:	409.2 KB
ID:	21695 Click image for larger version

Name:	VHPatterns2_STK1160_9.png
Views:	651
Size:	342.8 KB
ID:	21690

    ATI 750 USB
    Click image for larger version

Name:	VHPatterns2_ATI750_1.png
Views:	636
Size:	597.8 KB
ID:	21703 Click image for larger version

Name:	VHPatterns2_ATI750_2.png
Views:	631
Size:	767.5 KB
ID:	21704 Click image for larger version

Name:	VHPatterns2_ATI750_3.png
Views:	630
Size:	549.9 KB
ID:	21696 Click image for larger version

Name:	VHPatterns2_ATI750_4.png
Views:	639
Size:	795.9 KB
ID:	21697 Click image for larger version

Name:	VHPatterns2_ATI750_5.png
Views:	633
Size:	257.8 KB
ID:	21698 Click image for larger version

Name:	VHPatterns2_ATI750_6.png
Views:	636
Size:	398.3 KB
ID:	21699 Click image for larger version

Name:	VHPatterns2_ATI750_7.png
Views:	628
Size:	475.9 KB
ID:	21700 Click image for larger version

Name:	VHPatterns2_ATI750_8.png
Views:	635
Size:	430.9 KB
ID:	21701 Click image for larger version

Name:	VHPatterns2_ATI750_9.png
Views:	646
Size:	260.7 KB
ID:	21702

    HD AV Grabber
    Click image for larger version

Name:	VHPatterns2_HDAVGrabber_1.png
Views:	621
Size:	662.3 KB
ID:	21711 Click image for larger version

Name:	VHPatterns2_HDAVGrabber_2.png
Views:	623
Size:	811.3 KB
ID:	21713 Click image for larger version

Name:	VHPatterns2_HDAVGrabber_3.png
Views:	612
Size:	567.9 KB
ID:	21707 Click image for larger version

Name:	VHPatterns2_HDAVGrabber_4.png
Views:	621
Size:	755.4 KB
ID:	21706 Click image for larger version

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Views:	610
Size:	381.2 KB
ID:	21705 Click image for larger version

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Views:	614
Size:	538.1 KB
ID:	21708 Click image for larger version

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Views:	617
Size:	589.6 KB
ID:	21710 Click image for larger version

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Views:	613
Size:	488.9 KB
ID:	21709 Click image for larger version

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Views:	625
Size:	406.2 KB
ID:	21712
    Last edited by vaporeon800; 20th Jul 2014 at 00:27.
    Quote Quote  
  3. [VHS screenshots go here]

    This particular VCR's CVBS input has some issues, so we can't trust the measurements too precisely.

    The VC500's luma is a lot more stable on these still patterns frame-to-frame than the ATI 600, while its hue is a lot less stable. But the ATI 600's saturation "wobbles" as well.


    Diamond VC500
    Click image for larger version

Name:	VHS_DPS-470AV_VC500_1.png
Views:	620
Size:	826.6 KB
ID:	22257 Click image for larger version

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ID:	22253 Click image for larger version

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Views:	613
Size:	911.2 KB
ID:	22255

    Mygica EZGrabber2


    ATI 600 USB
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Name:	VHS_DPS-470AV_ATI600_1.png
Views:	598
Size:	831.8 KB
ID:	22266 Click image for larger version

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ID:	22268 Click image for larger version

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Size:	758.3 KB
ID:	22263 Click image for larger version

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Size:	933.9 KB
ID:	22267 Click image for larger version

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Views:	586
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ID:	22262 Click image for larger version

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Views:	593
Size:	890.4 KB
ID:	22264

    danno78 XCard (AVerMedia hardware)
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Name:	VHS_DPS-470AV_XCard_1.png
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Size:	713.0 KB
ID:	22284 Click image for larger version

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Views:	589
Size:	542.9 KB
ID:	22283 Click image for larger version

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Views:	568
Size:	507.5 KB
ID:	22287 Click image for larger version

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Views:	582
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ID:	22279 Click image for larger version

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Views:	571
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ID:	22281 Click image for larger version

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ID:	22285 Click image for larger version

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Size:	729.7 KB
ID:	22280 Click image for larger version

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Views:	570
Size:	756.7 KB
ID:	22282

    Easycap STK1160


    ATI 750 USB
    Click image for larger version

Name:	VHS_DPS-470AV_ATI750_1.png
Views:	564
Size:	813.2 KB
ID:	22275 Click image for larger version

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ID:	22272 Click image for larger version

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ID:	22271 Click image for larger version

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ID:	22273

    HD AV Grabber


    ----

    Diamond VC500


    Mygica EZGrabber2


    ATI 600 USB


    danno78 XCard (AVerMedia hardware)


    Easycap STK1160


    ATI 750 USB


    HD AV Grabber
    Last edited by vaporeon800; 22nd Dec 2013 at 02:29.
    Quote Quote  
  4. ATI Radeon X1950 Pro
    Click image for larger version

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    Here are VHPatterns2 captures made using the the "VIVO (Video In/Video Out)" feature of the ATI Radeon X1950 Pro (2006). I didn't include it previously because the GPU part of my card is pretty messed up, but I had reasons to install it in a machine again, so I figured I would grab some captures while it's in.

    The "ATI T200 AVStream Analog Capture" name imparted by the driver implies that it uses the Theater 200 chip, but evidently ATI's device naming is not to be trusted. I'm not about to tear the cooler off to inspect the chip myself, but images in reviews all agree that it's marked "ATI Rage Theater 213RT1ZUA43G". The non-AIW version of the 9600XT (2003) uses "ATI Rage Theater 213RT1ZUA43", i.e. the same code minus the "G" revision at the end. Its driver names it correctly as "ATI WDM Rage Theater Video", according to images in reviews. Meanwhile, the "ATI Theater200 213T20ZQA12" as seen on the AIW Radeon 9x00 series used this same "ATI WDM Rage Theater Video" name and NOT "T200", at least in the initial driver versions. Yeah...

    The 720x480 mode of the X1950 Pro is cropped and stretched; restoring the proper dimensions requires a downsize to 711x480 (i.e. the "capture window" of the card is non-standard). Since 4:2:2 images can only have even widths, I had to convert to 4:4:4 and then back after padding (VideoScope only supports YUY2). I carefully picked the chroma resampler, and there are no visible artifacts added. The resize down to 711 did add a tiny amount of ringing and a very tiny resolution loss on the most closely-spaced vertical lines. The luma rolloff that's immediately visible is part of the original capture, not an artifact of my resize.

    The 9600XT VIVO mentioned above apparently suffers from the same stretch.

    Note, there are other versions of Rage Theater: AIW 128 AGP 32MB (1999) is "213RT1ZUA32" and AIW 128 Pro AGP (2000) is "213RT1ZUA41". I suppose this different ADC explains why my 128 Pro captures are all the way down at a very-cropped ~689x480 stretched to 720x480 rather than matching the dimensions seen here. I had thought that perhaps a driver difference was to blame.
    Quote Quote  



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