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is there any Difference between dv quality ?

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  • #16
    Kenneally is, of course, technically correct re the DV hardware codec chip - and by "technically correct," I don't at all mean to imply that KH is trying to hide the ball or anything like that - but Mike's answer gets closer to the bottom line re the effect of a Storm (or NX) card on Edius:

    Originally posted by GrassValley_MD View Post
    Actually those boards are not acceleration boards. They are really for I/O only.

    The slight power boost from having the overlay and the real time output are so small now that they don't [produce] any noticeable difference.
    General rule: While you're editing - your project is not yet finished and you are working on the timeline - the Storm (or NX) card does absolutely nothing to accelerate what Edius can do processing the timeline, whether you're in HD or SD.

    The exception is if you edit with an external monitor connected to your camera/deck and your camera/deck connected to your computer:

    A. Without the Storm (or NX) card, you connect your camera/deck to your OHCI firewire on your computer, and your cpu must do the DV conversion to send the DV stream down the firewire to your camera/deck and out to the monitor; but

    B. With the Storm (or NX) card, you connect your camera/deck to the Storm (or NX) card on your computer, and the DV hardware codec chip on the Storm (or NX) card does the DV conversion to send the DV stream down the firewire to your camera/deck and out to the monitor, thereby freeing up the cpu to do other things (like Edius processing the timeline).

    So, unless you edit with a monitor attached to your computer through firewire, Edius will run just as fast processing the timeline with or without a Storm (or NX) card.
    Last edited by T-Bone; 05-25-2007, 05:23 AM.
    Harris
    edius pro 8.2, win10 pro x64, i7 5930K @ 4.4 on asus X99-A usb3.1, corsair h100i gtx with noctua fans, 32G gskill ddr4, gtx 980 4G, system 256G samsung ssd 950 pro M.2, swap 128G samsung ssd 850 pro, general use 512G samsung ssd 850 pro, video 4 @ 3T WD red pro in raid 5

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    • #17
      I don't think that is quite true Harris and I hope KH corrects me if I am wrong.

      Storm and Rex are in different categories then NX and SP. The first 2 do have some acceleration (DV only) while the later 2 do not. It used to be very noticable when computers were not as powerful.

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      • #18
        Actually we're all right, alright? *laugh*

        DVStorm, DVRex RT, EDIUS NX and EDIUS SP all have that DV chip.

        And yes, the boost it provides when you have the option "Realtime DV Output" checked is fairly minor in today's era of computing, but the (old and new) boards just feel more responsive than that of a software-only system.

        And that's about it on Hardware codecs - we're straying off topic.

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        • #19
          Harris is correct.

          The difference is only if you have realtime DV output enabled (and of course you're in a project mode that supports this).

          In OHCI modes, the CPU is tasked with the realtime DV compression.
          With DVRex-RT/DVStorm/DVRaptor-RT2/EDIUS NX/EDIUS SP the hardware DV codec does the realtime DV conversion, so there's more CPU power "available" for EDIUS to use.

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          • #20
            Originally posted by T-Bone View Post
            Kenneally is, of course, technically correct re the DV hardware codec chip - and by "technically correct," I don't at all mean to imply that KH is trying to hide the ball or anything like that - but Mike's answer gets closer to the bottom line re the effect of a Storm (or NX) card on Edius:



            General rule: While you're editing - your project is not yet finished and you are working on the timeline - the Storm (or NX) card does absolutely nothing to accelerate what Edius can do processing the timeline, whether you're in HD or SD.

            The exception is if you edit with an external monitor connected to your camera/deck and your camera/deck connected to your computer:

            A. Without the Storm (or NX) card, you connect your camera/deck to your OHCI firewire on your computer, and your cpu must do the DV conversion to send the DV stream down the firewire to your camera/deck and out to the monitor; but

            B. With the Storm (or NX) card, you connect your camera/deck to the Storm (or NX) card on your computer, and the DV hardware codec chip on the Storm (or NX) card does the DV conversion to send the DV stream down the firewire to your camera/deck and out to the monitor, thereby freeing up the cpu to do other things (like Edius processing the timeline).

            So, unless you edit with a monitor attached to your computer through firewire, Edius will run just as fast processing the timeline with or without a Storm (or NX) card.


            You typed it out more detailed then I did! :)



            Mike

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            • #21
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