Video Transfer Control
During digitization of SD-video carriers, electrical metadata is collected as ISR (Interactive Status Report) events and/or RF (Radio Frequency) traces, which both indicate issues during the running transfer.
Upon erroneous physical interaction between the tape and the reading head of the VTR (e.g. due to dirty tape or a smeared up reading head), the subsequently noticeable drop in signal will be logged to indicate, that a transfer error occurred.
As this method is based on detection of actual physical interactions, the results are unambiguous and there are no false positives.
The results of FrameLector's transfer quality control can either be examined directly within the application or -especially in the context of an industrial digitization facility- be forwarded to subsequent quality check steps in the workflow, where trained QC operators will have the possibility to assess the success of the digitization.
With this information, archivists can be sure not to introduce new errors upon digitization, respectively they are enabled to react accordingly (e.g. by sending the tapes through a cleaning cycle or maintain the VTRs).
Whereas ISR events are forwarded by the most common VTRs natively, NOA supports a variety of replayers (for analog formats such as Betacam or even digital formats such as DVCam) to be fitted with a sensorplate, which enables readout of RF traces. Please contact us directly for a list of currently supported replayers.