Saturday, June 19, 2010

[Avid-L2] Re: 2997 to 2398

Okay I think I got it to work but I think it is because I did have the offline media online. What Terry said for step 2 seems to work when I did the following:
1) Start with a 30I project
2) Create 30I Matchback Project and duplicate the original sequence
and then duplicate the start tc to TC 24 column.
3) Modify the sequence to 23.976 HD 1080P (This was what I missed in
previous attempts because I was going to NTSC 23.98 which only
supports 30 frame source code, I think). Created a new 23.976
1080P project and copied this sequence into a bin in the new
project At this point revealing ref clips shows clips with Start
TC 30F and TC 24 24F code. TC1 for the source clips is still 30F
4) Duplicated sequence to a new bin and transcoded to 23.976 1080P
project rate. At this point the trancoded clips have no TC 24
but the Start TCs for transcoded clips are 24F. Source TC1 is 24F
5) Created a new bin and duplicated the transcoded sequence in it.
Decomposed the sequence and ended up with new video master clips
offline with no TC 24 but start TC 24F code (except for audio
clips which still have 30F start code and TC 24 values.) Source
TC1 is 24F

This seems to have worked as best I can tell. Greg you seem to be correct that without the offline media to transcode this wouldn't work. That seems the only way to get the start column time code to be 24F. I'll play around some more without the offline media to see if there is a way to fool the process.

--- In Avid-L2@yahoogroups.com, Greg Huson <Greg@...> wrote:
>
> Interesting. I couldn't go that route because I don't have original
> offline media-it's a match-back kind of deal. Did 'turbo trace' by
> hand, essentially. I spent a couple hours trying to use the edl
> method, which used to be straight forward, but that didn't work
> correctly, either.
>
> I'll figure it out tomorrow. If mr Phillips happens to be reading
> tonight- anything new since what's publised on 24p.com?
>
> Incidentally, if you reformat the 2997 sequence to 2398, THEN make
> your edl, all the sources end up with speed changes in them, and the
> wrong outpoint. Wheee! It's been a while since I needed to do this,
> so I'm sure there's a simple step I've skipped. I hope.
>
> Greg (at) secrethq.com
> Greg Huson
> Secret Headquarters, Inc
> www.DigitalServiceStation.com
> www.SecretHQ.com
> iPhone
>
>
>
> On Jun 19, 2010, at 12:06 AM, "johnrobmoore" <bigfish@...>
> wrote:
>
> > Okay more has been revealed. I hooked up a camera so I could drag
> > clips into the capture tool. Doing this it appears the start column
> > is the one that ends up used for capture so in this case it is 30
> > frame code and therefore doesn't seem like it would work for going
> > back to 23.98 original sources. Back to try a few more things.
> >
> > --- In Avid-L2@yahoogroups.com, "johnrobmoore" <bigfish@> wrote:
> > >
> > > Playing around a little more I find I get an invalid trim error
> > when I duplicate the start time code to the TC 24 column. Even
> > though the error happens it still copies the time code but for no
> > apparent reason many of the clips don't end up with TC 24 values. I
> > can't see a pattern to the missing values, sometimes it's right in
> > the middle of a captured interview tape. Taking the sequence at this
> > point and decomposing it all the subsequent clips have values in the
> > TC 24 but again the start time code is 30 frame code. So the
> > question still remains what will the avid use for batch capture?
> > >
> > > --- In Avid-L2@yahoogroups.com, "johnrobmoore" <bigfish@> wrote:
> > > >
> > > > I decided to play with this with an SD 30 show I offlined. I
> > first started in the 30I project and modified the seq to 23.98 which
> > created a few mixdowns for matte keys. I then made a 23.98 project
> > and started a new sequence and cut the modified sequence into it. I
> > then transcoded the sequence to 23.98. There is a warning "Transcode
> > creates new clips that match the current project rate. Because the
> > new edit does not match the original clip, you cannot batch capture,
> > batch import, relink or link (via AMA) to these new clips." I then
> > decomposed the sequence and ended up with offline clips that say
> > they are format 23.98 but the timecode in the start column is still
> > 30frame. I can duplicate that into a TC 24 column but I'm not sure
> > what time code would be used in a batch capture. I don't have a deck
> > to try and load one of the clips into the capture tool to see if it
> > will get the 24 or 30 code for batch capture. It seems like there is
> > still a need to somehow get the 24 frame code into the Start column
> > so you could capture from the original 23.98 master tapes. My
> > understanding is in a traditional 23.98 NTSC offline to HD online
> > the process of modifying the offline sequence to HD 23.98
> > automatically changes the source codes to 24frame code not the 30
> > frame captured in offline. Perhaps Mr. Philips could shed some light
> > on this.
> > > >
> > > > --- In Avid-L2@yahoogroups.com, "Terence Curren" <tcurren@> wrote:
> > > > >
> > > > > Ready for fun???
> > > > >
> > > > > You can open your 29.97 sequence in a 23.98 project and Avid
> > converts everything. But....
> > > > >
> > > > > It keeps the sources as 29.97 with the motion effect applied
> > to make them 23.98.
> > > > >
> > > > > So, you now have two possible workarounds.
> > > > >
> > > > > 1: is to use a combination of the Avid conversion method and
> > EDL. In other words, do the EDL method and cut it over your
> > converted sequence on a higher track. Then you can lift effects from
> > the converted sequence up to the EDL created shots. When done,
> > decompose and capture.
> > > > >
> > > > > 2: And I haven't tried this yet but it should work. Transcode
> > your converted 23.98 timeline to changing the frame rate to 23.98.
> > Delete all that media, decompose and capture.
> > > > >
> > > > >
> > > > >
> > > > > --- In Avid-L2@yahoogroups.com, Greg Huson <Greg@> wrote:
> > > > > >
> > > > > > I'm conforming a feature that was done all 29.97 - but the
> > original is
> > > > > > 23.98. I haven't had this combo recently - in the past, the
> > method
> > > > > > was to create a 23.98 edl from the 24p column.
> > > > > >
> > > > > > Is there a newer, better, more efficient, not-involving and
> > EDL
> > > > > > method? Offline source was 23.98, captured as 29.97.
> > > > > >
> > > > > > Anything better than the EDL method? I'm poking around the
> > internet
> > > > > > and help files, but the 'L' is often faster!
> > > > > >
> > > > > > gh
> > > > > > ----------------------------------------------------
> > > > > > Greg Huson
> > > > > > Secret Headquarters, Inc
> > > > > > Post Production / Production
> > > > > > Culver City, CA
> > > > > > 323 677 2092
> > > > > > 323 677 2096 F
> > > > > > www.DigitalServiceStation.com
> > > > > > greg (at) SecretHQ.com
> > > > > > www.SecretHQ.com
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > [Non-text portions of this message have been removed]
> > > > > >
> > > > >
> > > >
> > >
> >
> >
>
>
> [Non-text portions of this message have been removed]
>


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