Friday, September 6, 2013

[Avid-L2] Re: Symphony 6.0.4 with Decklink 4K Ext. can't find coincidence point on capture?

 

Perhaps it's set to emulate or something like that. Good idea, I'll check when I'm back at the facility.

--- In Avid-L2@yahoogroups.com, "Dom Q. Silverio" <domqsilverio@...> wrote:
>
> Go to the menu settings 202. See if changing that affects it.
>
>
> Dom Q. Silverio
>
>
> On Fri, Sep 6, 2013 at 1:26 PM, johnrobmoore <bigfish@...> wrote:
>
> > Relax coincidence point did the trick and I'm happily capturing frame
> > accurately from both Sony and Panny decks, based on the machines time code
> > window displaying time code at the bottom of the frame to avoid the field
> > offset when the tc window is at the top of the from. One curiosity after
> > all is said and done when I auto config to one of our SD Panny AJ-D930
> > decks it thinks it's a BVW-75. Usually the auto config is wrong on the
> > Panny decks but it at least gets the manufacturer correct on our 1200A and
> > 1400 models. Not a big deal but I hadn't noticed that behavior before but
> > then I've rarely used anything but the 1400 and 1200 decks.
> >
> > --- In Avid-L2@yahoogroups.com, Verne Mattson <vdmattson@> wrote:
> > >
> > > Go to Settings>Deck Preferences and check "Relax coincidence point
> > detection".  See if that helps.
> > >
> > > Verne
> > >
> > >
> > >
> > >
> > > ________________________________
> > > From: johnrobmoore <bigfish@>
> > > To: Avid-L2@yahoogroups.com
> > > Sent: Thursday, September 5, 2013 10:17 PM
> > > Subject: [Avid-L2] Re: Symphony 6.0.4 with Decklink 4K Ext. can't find
> > coincidence point on capture?
> > >
> > >
> > >
> > > Â
> > > I got back on the system and installed a keyspan USA 28x b. Using the
> > keyspan trying to batch capture from the Sony digibeta I got 51 aborts and
> > 10 successes that were all frame accurate.
> > >
> > > I switched back to the Decklink 4K card and I got 61 aborts and 1
> > captured clip that was also frame accurate. The successful clip happened
> > on attempt 24 not the very last one and I switched the digibeta to LTC from
> > Auto Time code read after attempt 30 just to see if that played a factor.
> > >
> > > The fact that the panasonic decks seem to capture reliably makes me
> > think there is something different in their RS-422 protocol that is more
> > forgiving or less likely to send an error flag to Avid through the decklink
> > interface. Clearly there seems to be an under the hood issue here. I
> > can't believe people are using these cards in a tape environment with
> > success but perhaps there is something weird on this fairly virgin system
> > that I just haven't found yet.
> > >
> > > I googled and found this relating to time code breaks but that's not
> > what I need. I think I need a desensitizer. Hers's what I found in a
> > forum:
> > >
> > > There is also a console command to increase the TC break tolerance
> > though I have had little success with that.
> > >
> > > Set tolerance of timecode break detection during capture across timecode
> > breaks
> > > SYNTAX tcbreaktolerance 4
> > > NOTES The digitize window/capture window must be open while entering the
> > console
> > > command.
> > > This command sets the interval after which the system will check for a
> > TC break. The
> > > default is to check the timecode every 6 frames during capture.
> > Shortening the interval
> > > will catch the breaks earlier. It may also avoid a Timecode `slip' which
> > happens
> > > occasionally where the timecode on part of a clip can be off by several
> > frames due to
> > > the (rather lengthy) timecode check interval.
> > > CAUTION A setting below 3 is impractical â€" it will generate too many
> > error messages when there
> > > are not any. The minimum practical setting seems to be 3.
> > > As stated above, type this change into the console with the Capture
> > window active for
> > > it to work.
> > >
> > > --- In Avid-L2@yahoogroups.com, John Moore <bigfish@> wrote:
> > > >
> > > > Now that I've swapped our Decklink 4K extreme it is now registering in
> > > > system info and it works with the media express app and Avid Symphony
> > > > 6.0.4 on MacPro 12Core OS 10.8.3 BlackMagic Desktop manager 7.7 the
> > > > latest one on the BM site. For some reason in Avid I can not capture
> > or batch capture with in and out points or even just an in point with our
> > > > Sony decks. We have a DVW-A500 and a BVW-70. Trying to capture
> > from in house blacked tapes it will pre roll and roll up to the in point and
> > > > then error out saying "coincidence point not found" or whatever the
> > > > exact verbage is. I can however roll the machine and hit record
> > and it will capture a frame accurate clip. If I hook up one of our
> > Panasonic
> > > > AF-D96 decks it will capture properly. I tried manually configuring
> > the deck protocol to Sony when hooked up to the Panny deck and I started to
> > get the coincidence point error. I also tried controlling the Sony
> > > > DVW-A500 with Panasonic protocol and I got the coincidence point
> > error. I have taken the digibeta out of 4F to 2F with no change. I have
> > > > extended the preroll to 10 seconds and I still get the error. These
> > are in house black and code tapes that captured fine with the Black Magic
> > > > Media express app. I switched the capture setting from best available
> > > > time code to standard time code and no change. I pulled the reference
> > > > input off the Decklink 4K no change. I blanked all the Vertical
> > Interval to avoid a VITC conflict.
> > > >
> > > >
> > > > In the past I've seen cases where different Rosetta Stone devices
> > worked
> > > > for different brands of decks. For example an Avid all in one PC com
> > > > port to RS 422 adapter would work with a Panny deck but not a J30SDI.Â
> > > > It wouldn't communicate at all. In my current case it communicates
> > but
> > > > can't find a coincidence point when there is an in point or a batch
> > > > capture. I trashed the .avs file in the project because I've seen
> > that
> > > > mess with batch capture before. This is a new install on a system
> > that
> > > > had the trial expire on Ver. 7 media composer. I uninstalled V. 7 and
> > > > installed V. 6.0.4 for a trial and then installed the Black magic
> > driver desktop manager. Everything works as expected except for capturing
> > > > from our Sony decks. I seem to recall someone mentioning a console
> > > > command to relax tolerance on deck control recently but I can't seem to
> > > > find that in the topics list. Anybody got any suggestions? And is
> > > > anybody running the decklink 4K extreme with Avid and capturing from
> > > > Sony decks.
> > > >
> > > > My next steps when I'm back in the room will be to try a keyspan and
> > set
> > > > the digibeta to read ltc only at the deck. I doubt the ltc only will
> > > > have an effect because the BVW-70 tape I used had no VITC and it still
> > > > couldn't find the coincidence point.
> > > >
> > > > Â
> > > > John Moore
> > > > Barking Trout Productions
> > > > Studio City, CA
> > > > bigfish@
> > > >
> > >
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>

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