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Altering Headers on VAD files

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  • Altering Headers on VAD files

    Dear Subscribers,

    We are currently using a Vicon system to capture motion data in our lab.
    Vicon saves the analog data as a .vad file. These files are in a binary
    format that I am unfamiliar with. We currently have several subjects where
    the sampling frequency and other parameters that are contained in the
    header of these files were changed during testing. I need to find a way to
    alter the header of these files to change the number of channels/sampling

    I currently have tried such programs from Motion Lab Systems (RDATA2,
    C3DViewers, etc) but none of these files allow me to alter the header and
    resave the data, at least from what I have found.

    Does anyone have any experience with these vad files or has figured out a
    way to decode the binary header?

    Any suggestion would be greatly appreciated.

    Thank You,

    Dave McGurl

    (412) 624-9898

    University of Pittsburgh
    Department of Bioengineering
    749 Benedum Hall
    3700 O'Hara Street
    Pittsburgh, PA 15261