Re: 18..22 frames delay


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Re: 18..22 frames delay
by John Schell on Oct 28, 2005 at 3:57:51 pm

Hi Max,
The SD-Connect does have a buffer internally (it has to). In 1394 deck/camera mode, the buffer is 20 frames. In a editing app mode (FCP, premiere, etc.) the buffer is 6 frames. The buffer is very long in deck/camera mode because the cameras and decks can be off on their 1394 bus frequency due to pulling data off a tape. If the motor on the tape control is off by a fraction of a percent, the buffer in the SD-Connect will underflow or overflow. We have the large buffer to ensure that this does not happen (the video will be lost). When the data comes from a computer, this is not a problem because the hard disk can randomly access the data at any point in time.
Hopefully this answers your question.

Regards,

John Schell
Convergent Design Inc.

PS I believe that in regards to the previous question on the forum, the poster called us and we answered their question.

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Current Message Thread:

18..22 frames delay by max verem on Oct 28, 2005 at 1:07:55 pm
- Re: 18..22 frames delay by John Schell on Oct 28, 2005 at 3:57:51 pm
  - Re: 18..22 frames delay by max verem on Oct 28, 2005 at 4:07:46 pm
  - Re: 18..22 frames delay by max verem on Nov 1, 2005 at 3:24:59 pm
    - Re: 18..22 frames delay by John Schell on Nov 1, 2005 at 11:48:10 pm
      - Re: 18..22 frames delay by max verem on Nov 2, 2005 at 8:04:06 am
        Re: 18..22 frames delay by John Schell on Nov 9, 2005 at 7:09:54 pm
        Re: 18..22 frames delay by max verem on Nov 10, 2005 at 3:48:03 pm

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