Forum Replies Created

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  • Maurice Jansen

    November 24, 2009 at 8:49 pm in reply to: Best reference book for serious HD?

    Yes

    RTFM is always a wise thing to start with. 😉
    but for good background info you already mentioned a name
    John Watkinson
    i have a few books from him and some whitepapers.
    the man is good but is going fast sometime’s.
    and expect you to be of some competence.
    next to that i have video dymistified from Keith Jack
    very good reference book
    and start browsing to Tektronix they have very good whitepapers.
    and Quantel and surge for their handbook this is a good glossary.

    greet
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    November 23, 2009 at 6:53 pm in reply to: Best wishes to Bob Zelin

    hi bob

    my condolences to you and your family Bob.

    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    November 22, 2009 at 10:10 am in reply to: Mounting a HS400A in a flypack

    hi

    we builded it in a carpeted tunnel with a drawer.
    you can then easily stack a monitor on the top for the multiviewer.
    and you get rid of the messy cable’s and the “atari” look of this cute mixer.

    greet
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    November 21, 2009 at 11:16 am in reply to: Interlaced to broadcast

    your correct

    if you use the last option all the things you ad will studder

    greet
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    November 21, 2009 at 11:14 am in reply to: HDMI vs HD-SDI

    hi peter.

    first HD-SDI versus Y,Pb,Pr
    i don’t know this particular panel but i have used several type’s from pioneer in the past. Color wise don’t bother they wll both look the same.
    my experience with the component input’s is that on some models there is excessive ringing you just have to try this out with some testchart’s.
    you would expect that this i with the cheap ones and the expensive should do this right but experience learned me that this is completly random.
    on some models it is true what Bob says that the HD-SDIinput is just a convertor to YPbPr actualy fed internaly to the YPbPr. but this is not always true. also do some test with nasty interlaced material.

    HDMI
    watchout here understand where you are producing for.
    HDMI can be configured in RGB and YCbCr. as the display communicates
    with the signal supplier it can be a pain to force it to be in a specific format. if you are producing for broadcast remember that your production will endup in a YCbCr format and you want to see this.
    and remember in singlelink HDMI still is just 8Bit.

    greet
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    November 21, 2009 at 10:32 am in reply to: Running Sync to multiple edit bays…..

    hi Alex

    using T-pieces is in our company called plumbingvideo.
    i guess this is enough said now don’t do this.
    on the blurry photo and your explaination i figure this is also done on the RefDA input’s (BRRRR) you don’t want a facility wired up like that.
    use DA’s with passive loopthrough’s, loop them through and stop after a few and terminate. I guess the engineer who have made this this way wanted to be redundant so if one DAfails the rest would still work.
    but i guess he forgot that it is terminated a few time’s now.

    greet
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    November 16, 2009 at 11:41 pm in reply to: AES/EBU vs embedded SDI

    yep

    as the name says embedded audio. it is a AES/EBU stream packed(embedded) in the horizontal blanking area of a sdi video signal. there is no difference except that it is carriered by the SDI signal. the sdi signal is just a train where the AES/EBU audio signal is traveling whith (that’s a very sesamestreet explaination 😉 ) sorry for that

    grt
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    November 2, 2009 at 10:23 pm in reply to: HD-SDI or Component

    well first tell us what kind of work you are doing.
    and what you aspect from your monitor.

    what i mean to say is is it for you to analyze color’s on the set and other picture quality issue’s or is it to show framing to a client or director.

    greet
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    November 1, 2009 at 8:42 am in reply to: HD question

    hi mike.

    my statement was a general statement.
    and was without encoding steps.
    in the article the originals where on HDV which is a enormous amount of compression. downscaling needs info which just is not there anymore in HDV.
    shit in is shit out.
    downscaling always has a price.
    you want it cheap you get aliasing and ringing.
    you want it good you have to sell the house 😉

    greet
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

  • Maurice Jansen

    October 31, 2009 at 12:21 pm in reply to: HD question

    hi i already posted this in a other thread but is also true here.

    Without talking about all the other aspect of a camera that have influence on picture quality. sorry but i get technical here 😉
    Mister nyquist has proved us that oversampling (what using a HD camera in a SD enviroment actually is) increase quality.
    a HD camera will perform better in a SD enviroment due to the aperture effect. The optical path in a camera (this include the CCD) act as a lowpass filter that has a very slow roll-off (sinx/x)a SD camera will have a attenuation of detail near the half sample freq of 4dB. a HD camera has the same response but a wider frequenty range giving that on the same input frequentie (detail in a scene) the attenuation will be far less. resulting in a better rendering of detail.

    of coarse this does not take bad downscaling in account.

    cheap camera’s will downscale badly and will have bad detail proccessing on there downscaled output’s.

    so let your NLE do the hardwork since it has time for it.

    greet
    Maurice

    People saying they don’t make mistake’s often make nothing at all!

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