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Activity Forums AJA Video Systems Uncompressed HD over firewire?

  • Uncompressed HD over firewire?

    Posted by Jason on May 1, 2007 at 8:15 am

    Hi,

    The new AJA IO HD looks great but I’m confused as Uncompressed HD can be more than 100mb/sec yet firewire800 is only 100mb/sec. How does this work or does it not actially do uncompressed?

    Thanks

    Jason

    Ed Dooley replied 19 years ago 3 Members · 4 Replies
  • 4 Replies
  • Simon Blackledge

    May 1, 2007 at 9:04 am

    Only Apple ProRes 4:2:2 10bit for HD. Does Uncompressed SD.

    S

  • Ed Dooley

    May 1, 2007 at 9:36 pm

    Firewire 800 is 800mb/sec. It’s also 100MB/sec. In an ideal world that is. 🙂
    Ed

    [Jason] “The new AJA IO HD looks great but I’m confused as Uncompressed HD can be more than 100mb/sec yet firewire800 is only 100mb/sec. How does this work or does it not actially do uncompressed?”

  • Jason

    May 1, 2007 at 9:42 pm

    Firewire 800 is meant to be twice the speed of firewire 400 which has a speed of 50mb/sec, the 800 mean 800mbits/sec which is slower than a mb.

    Jason

  • Ed Dooley

    May 2, 2007 at 4:58 pm

    Jason, You’re missing the point, get your bits and bytes right.
    A mb is a mega *bit* (or 1/8th of a megabyte), a MB is a mega *byte* (or 8 megabits). FW400 has a theoretical speed of 400mb, or 50MB. For FW800 it’s 800mb, or 100MB.
    Ed

    [Jason] “Firewire 800 is meant to be twice the speed of firewire 400 which has a speed of 50mb/sec, the 800 mean 800mbits/sec which is slower than a mb.”

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