Re: [Avid-L2] Re: file based QC

As a slight tangent to this then - what are you using to legalise video for
file-based delivery?

I've found the Avid Safe Color effect to be, uh, inconsistent. Although
applying a Color Correction with 16-235 levels set on the curves does seem
to work, it also seems a little aggressive?

Every single clip I've put through Resolve comes out peachy - so I did
consider rendering everything trough that.

I'm checking with a Tek WFM5000 scope.

Dylan Reeve
http://dylanreeve.com/


On Thu, Apr 4, 2013 at 11:52 AM, jeffsengpiehl <jeffsengpiehl@yahoo.com>wrote:

> **
>
>
> There's really no reason not to put eyeballs on it- Tho I've found some
> deliverables (XDCAM 50 at 60FPS) won't AMA, so FCP playout it is.
>
> JDS
>
>
> --- In Avid-L2@yahoogroups.com, "johnrobmoore" <bigfish@...> wrote:
> >
> > I still like to take my file and ama link and play back through my
> tektronix scope with error log running. I feed LTC out of avid so it can be
> logged by time code. Cerify and other file based apps can be used but I
> haven't been able to spot level issues with the accuracy I can through the
> traditional HDSDI analysis. The apps do look for data and format errors
> unique to files so they are valuable too but when it comes to levels of
> video I prefer to rely on the scope. Usually I've found a sequence that is
> in spec out of the Avid rarely has level issues introduced when exporting
> the file as long as I export a QT ref our of Avid and Use QT Pro to make
> Prores delivery files. Of course with the myriad of possible file creation
> workflows a pandora's box of problems can arise which is why I still like
> to link back ama to the file and play it down through Avid to check the
> actual essence of the file. It has been my experience and understanding
> that an ama link bypasses the QT engine now and I hope other aspects of
> file processing to avoid being fooled by an misinterpreted file level. The
> classic confusion of RGB vs. 601/709 seems to be the most common mismatch.
> With ama I get to see the actual essence levels as I understand it. HTH
> >
> > --- In Avid-L2@yahoogroups.com, Steve Hullfish <steve4lists@> wrote:
> > >
> > > Or come visit the booth I'll be at at NAB and check out Tektronix
> Cerify. It does QC on filebased delivery. File-based content analysis.
> > >
> > > This does exactly what you are asking for
> > >
> > >
> http://www.tek.com/file-based-content-analyzer/cerify-video-content-analysis
> > >
> > > (Disclaimer: I am an occasional vendor to Tektronix)
> > >
> > > Steve Hullfish
> > > contributor: www.provideocoalition.com
> > > author: "The Art and Technique of Digital Color Correction"
> > >
> > > On Apr 3, 2013, at 1:33 PM, jeffsengpiehl <jeffsengpiehl@> wrote:
> > >
> > > >
> > > > Not a scope, but there are applications that will process the file
> and find issues like those. I'd recommend Aurora By Digi-Metrics
> > > >
> > > > JDS
> > > > --- In Avid-L2@yahoogroups.com, Jeff Hedberg <jeff@> wrote:
> > > > >
> > > > > I tried searching the group for this - but I'm clearly using the
> wrong search terms.
> > > > > Didn't someone recently mention that there is a waveform monitor
> that is able to check file based deliveries for issues like - 2 mono tracks
> instead of a stereo, or bitrate too low, or other 'gotchas' with shipping
> master files instead of tape for broadcast? (thank heavens files are so
> much better than tape)
> > > > >
> > > > > I thank the L-2's collective memory in advance.
> > > > >
> > > > >
> > > > > Jeff
> > > > >
> > > > > ------------------
> > > > > Jeff Hedberg
> > > > > Union Editorial
> > > > > 575 Broadway
> > > > > 6th floor
> > > > > New York, NY 10012
> > > > >
> > > >
> > > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>
>
>


[Non-text portions of this message have been removed]



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