[rec.video] Using TBC with no "external sync in" on VTR?

andrew@calvin.doc.ca (Andrew Patrick) (06/06/91)

Is it possible to use a Time Base Corrector with a Video Tape Recorder
that does not have the "external sync in" feature?  I am using Intel's
DVI boards (the 2-board set) and the captured sequences from my cheap
VTR are all of out sync.  This is not true for sequences directly from
a camera, or from an expensive optical disk recorder.

Short of buying an expensive VTR with the external sync feature, 
is there anyway of cleaning up the signal using the TBC?


-- 
Andrew Patrick, Ph.D.       Department of Communications, Ottawa, CANADA
andrew@calvin.doc.CA
                    "The interface IS the program."

brown@vidiot.UUCP (Vidiot) (06/07/91)

In article <1991Jun6.031905.8336@rick.doc.ca> andrew@calvin.doc.ca (Andrew Patrick) writes:
<Is it possible to use a Time Base Corrector with a Video Tape Recorder
<that does not have the "external sync in" feature?  I am using Intel's
<DVI boards (the 2-board set) and the captured sequences from my cheap
<VTR are all of out sync.  This is not true for sequences directly from
<a camera, or from an expensive optical disk recorder.
<
<Short of buying an expensive VTR with the external sync feature, 
<is there anyway of cleaning up the signal using the TBC?

You can only use a TBC that has full frame digital memory, typically this is
called a framestore TBC, since it will internally lock onto the incoming
video.  A windowed TBC will not work.
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