ati all-in-wonder frame rate limit of 2.65 Mb/sec

Discussion in 'Video capturing from analog sources' started by pcarroll, Dec 18, 2003.

  1. pcarroll

    pcarroll Member

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    I have an AGP All-in-Wonder 128 Pro capture card and want to capture analog video. Every trick I have tried so far still can't get me past a 2.65 Mb/sec read bandwidth. Is there something I haven't tried. I have a 440BX chipset in a Celeron 1.4 GHz system, 256 Mb RAM, 30 and 40 Gig HD, latest BIOS and DirectX 9.0.
     
    pcarroll, Dec 18, 2003
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  2. Minion

    Minion Senior member

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    What is the "2.65MB/Sec Bandwidth"??? The Bandwidthth Of What?? Your AGP Slots Bandwidth? What???
     
    Minion, Dec 18, 2003
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  3. Praetor

    Praetor Moderator Staff Member

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    Wowzers, if thats the limit on those older AGP ports, you're in big trouble hehe. If i'm not mistaken AGP1 = 266MB/s, AGP2 = 528MB/s and AGP4 = 1056MB/s and no surprise, AGP8 = 2112MB/s
     
    Praetor, Dec 19, 2003
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  4. pcarroll

    pcarroll Member

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    The ATI system compatibility check just calls this read bandwidth, but I think it is directly related to MPEG2 MB/sec captured, so that would make it AGP or some other bottleneck bandwidth. I capture with dropped frames and a slight pulsing screen when I use settings above 2.5 MB/sec in MPEG though lowering the resolution helps me get a bit more throughput. The captures look okay at 2.5 MB/sec and below, no pulsing or dropped frames but I was hoping to get better quality for the home video caputres.

    Thanks

    Paul
     
    pcarroll, Dec 19, 2003
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  5. Minion

    Minion Senior member

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    Well it sound like you Probably need a faster CPU so you can capture at a Higher Bitrate and Resolution...You can Upgrade to a New Intel 2.5ghz and a New ECS Board with the new 8X AGP for $105 US, I just got 2 of them today...Cheers
     
    Minion, Dec 19, 2003
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  6. pcarroll

    pcarroll Member

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    Would using a USB 2.0 capture device improve capture rates? I'm thinking Dazzle, etc.
     
    pcarroll, Dec 19, 2003
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  7. msb5150

    msb5150 Regular member

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    That depends, if the problem truly is with your agp bus, and not your cpu, then a usb capture device might very well work. However, if your cpu cannot handle the task, or maybe there is another bottleneck like the ram of the hard drive, then you may need to upgrade your pc, or abandon the effort and use vhs(something I really hate to say, but it always works)
     
    msb5150, Dec 19, 2003
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