#WFM V-Scope Techniques
5 messages in this thread
Hi All,
I told John in a previous message that I would get this started so here is
the first question.
How about a user comparison of the black box type VS. a computer based WFM
V-Scope??? Right now I don't own one so I would love to see a some input from
users.
Regards,
Michael W. Towe
Falcon Video Productions
Santee Ca.
I have done some preliminary evaluations in preparation for some in-depth
reviews of these units. I am not looking at PC based units because, in my
opinion, they are not too useful for DTV situations.
Most of the DTV enthusiasts (amateur and professional) I have run into have
only one PC. If you have a WFM/VS in your PC, you can't be monitoring your
video at the same time as you are editing. A standalone unit, either with
built-in CRT or a rasterizing unit, is more versatile and offer more
opportunity for use. They are also unaffected by forces within the PC (hear,
EMI, RFI, etc.) and they don't take any slots in the PC, leaving more available
for video and audio devices.
I'm going to be writing up an article on them for a future issue of my
newsletter, so I'd better save some details for now.
James Bell Jr. — Multimedia Contributor – CompuServe
James,
My experience with PC based Wave Form Monitors and Vectorscopes has been
limited to the DPS Personal V-Scope. However with this board the only time
that you need to "talk" to it via software is when you might want to make a
change to some of its settings. Normally I find that I can just leave it in
one setting while I am editing without having to come back to it again and
again, disrupting the editing process. Now maybe other editors do grab the
knobs on their WFM/VScope continuosly, because they can, but I think that in
general they do the same as I, leaving it set in one position or another and
monitoring the "display" monitor.
The DPS V-Scope takes a feed of the Program Output and then provides a
composite signal to a dedicated monitor that provides the WFM/V-Scope display.
It operates continuosly with any and all other software on the machine (the
board itself simply draws power from the PC slot and all control signals come
through a serial interface).
-John -John
One serious drawback of (at least the original) Personal VScopes is that there
is no genlock input. Makes it tough to time an A/B roll suite for match-frame
editing.
wmc – via Autopilot!
James,
I hope you look at the VideoTek VTM-100. Great unit for a great price.
wmc – via Autopilot!