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  • GrassValley_BH
    replied
    Capturing HDV over Firewire and previewing on the destination device will introduce a significant delay. This is the nature of the HDV format. Because it's Long-GOP MPEG-2, there's a certain threshold amount of data that must be received before picture can be decoded (at least one GOP which is roughly 1/2 second). The rest of the latency is decoding latency - the time required to actually decode the data.

    Unless you're getting uncompressed video (via HDMI or HD-SDI) or analog video, you're going to see a delay, regardless of whether you're going to a computer, another HDV camera, or an HDV deck.

    DV has the same issue, but to a much lesser extent because DV uses intra-frame compression, so only one frame is required before it can be decoded, but there's also a bit of decoding latency.

    Leave a comment:


  • Jerry
    replied
    Originally posted by jeff king View Post
    Hi, I have a Canon XH-A1 and for the first time I am having issues with tapes. So I decided to use my computer on my last event to capture directly into Edius as a HQ 1440 x 1080 file and it seemed to work fine but I could not use my computer monitor as the video monitor due to the picture being about a half second behind so I used the camera monitor insted.
    I would like to know if others as using this method and is there any way to get the computer monitor to show real time viedo and any other advice other my have.
    My system is:
    Intel DP35DP motherboard.
    Inter E6700 Core 2 processor.
    4gb (1gb X 4) kingston ddr2 800 memory
    ATI 1650 with 128mb memory Video Card
    2 ea 500 gb Westren Digital Sata 2 Hard Drive (not in Raid)
    1 ea 250 gb Westren Digital Sata 2 System Hard Drive
    Windows XP Pro with SP 2
    P.S.
    Sometime this month I plan on up-dating my cpu to the new q9450 intel quad core cpu.
    I do this but I use an Intensity Pro to capture with the same camera. I get realtime uncompressed capture with realtime preview on an external monitor.
    This is either by HDMI or Analog capture. If using HDMI I use a different camera to playback.

    Here is an option for you. Do you have an extra LCD tv? If so, you can take your analog outputs and input that into a TV for preview. When I do Location shoots, I have a portable 15in LCD that I take along, mostly for focusing.
    But, this procedure will work everytime.

    Leave a comment:


  • j king
    replied
    Rusty,
    I checked task manager and it showed 3402112 K for physical memory.
    I just on my last project started capturing hvd instead of having the camcorder down convert to avi. I did notice when encoding that the time required was if I remember correctly about 4 times longer.
    I was thinking that by going to either the q6600 or wait another 10 days and go with the q9450 would at least get me back to a 1 to 1 capture to encode time. do you think that a higher core 2 would be better say a 3ghz or higher then the two quads I was looking at.

    Thank You
    Jeff King

    Leave a comment:


  • Rusty
    replied
    Jeff, welcome to the Forum.

    How much RAM shows up with 4GB installed? (just curious)

    RAID your 500GB drives... even a software RAID is fine.

    Unless you use Speed Encoder a lot you may be disappointed with the performance of a Quad-Core with Edius... I was.

    Leave a comment:


  • j king
    replied
    Yes I use the Firewire connection from Camcorder to Computer and No I don't have an anolog video card.
    I thank you for your advice. I will have to live with that very small screen canon put on my camcorder, but I have used my camcorder with my monitor only connected through the composit cables to the monitor and that works real time.

    Leave a comment:


  • Sebastian
    replied
    Are you using firewire?
    If so there is nothing to do, I have been using firewire many times
    for direct to disk recording (dv-avi)in many different software and there have always been latency.
    I don´t know what is causing this, but I guess it is the firewire driver.

    Do you have a analog capture card, maybe that would work more realtime.

    Sebastian

    Leave a comment:


  • j king
    started a topic Capture direct to Hard Drive

    Capture direct to Hard Drive

    Hi, I have a Canon XH-A1 and for the first time I am having issues with tapes. So I decided to use my computer on my last event to capture directly into Edius as a HQ 1440 x 1080 file and it seemed to work fine but I could not use my computer monitor as the video monitor due to the picture being about a half second behind so I used the camera monitor insted.
    I would like to know if others as using this method and is there any way to get the computer monitor to show real time viedo and any other advice other my have.
    My system is:
    Intel DP35DP motherboard.
    Inter E6700 Core 2 processor.
    4gb (1gb X 4) kingston ddr2 800 memory
    ATI 1650 with 128mb memory Video Card
    2 ea 500 gb Westren Digital Sata 2 Hard Drive (not in Raid)
    1 ea 250 gb Westren Digital Sata 2 System Hard Drive
    Windows XP Pro with SP 2
    P.S.
    Sometime this month I plan on up-dating my cpu to the new q9450 intel quad core cpu.
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