TITLE
    DV: Frame Accuracy
Article ID:
Created:
Modified:
25091
1/20/00
1/21/00

TOPIC

    This article discusses frame accuracy with DV and FireWire.


DISCUSSION

    DV and FireWire are not frame accurate device control protocols. This can mean that when you capture a clip it may capture several frames early or late. The Timecode numbers will still match the frames of the media (if properly calibrated). Also, when performing an Edit to Tape function, the edit may take place a few frames earlier or later. To get frame accurate control you must have a video deck which supports a device control protocol such as RS-422, or RS-232.

    Note: A USB to serial adapter must be used with RS-422 or RS-232 devices on Power Macintosh G4 computers, or any Macintosh without built-in serial ports.


Document Information
Product Area: Mac OS System Software
Category: General OS
Sub Category: General Topics

Copyright © 2000 Apple Computer, Inc. All rights reserved.