Friday, January 12, 2018

Re: [Avid-L2] 30p clips at 29.97p

 

Thanks for help John!

It gets a bit confusing because there is some ambiguity in the wording in the box in transcoding.

There's either "keep source's frame rate" and "convert to project frame rate."

If I have changed the playback speed on a linked clip from 30p to 29.97p in the source settings, do I want to "keep source's frame rate"? Is the new frame rate considered now the "source frame rate"? (In the bin it stays 30p.)

If i check "convert to project frame rate" will it do the typical conversion of 30p to 29.97p losing frames or will it do what I am looking for, a frame for frame conversion of 30p to 29.97p?

The answer: 

We ran the test with a 25p clip changed to 29.97p playback speed and then transcoded at either setting.

The duration of the clip stayed the same as the original when we clicked "keep source's frame rate" and the clip was shorter when we clicked "convert to project frame rate" which should happen if it is frame for frame conversion.

So it does seem like the combination of changing the source playback rate in source settings and then "convert to project frame rate" in transcode gets me where I am want to go...

I only have dealt with this as video. Anyone know if audio stays in sync or does it develop artifacts?





On Fri, Jan 12, 2018, at 2:27 PM, John Pale wrote:
You have the option to bake in the new frame rate or leave it via a check box in the transcode dialog.

On Fri, Jan 12, 2018 at 2:19 PM Dan McCabe danlist@bestmail.us [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

 


Thanks for the help Mark.

What is the best way to bake that in and move away from the linked file? If I transcode will it respect the change in speed so that the new clip is a 29.97p file? Or do I need to export and bring the new file back in?





On Thu, Jan 11, 2018, at 6:38 PM, Mark Spano wrote:
Open your 29.97 project.
Link the clip.
Right-click it in the bin and choose Source Settings.
Under playback, you can tell it to play at 29.97 instead of 30.

easy…


On Thu, Jan 11, 2018 at 5:45 PM, Dan McCabe danlist@bestmail.us [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

 


Dear Mavens,

In the past when I have received stock or animations at 30p I have put them through Cinema Tools and directly changed the speed of the file to 29.97 fps to avoid any bumps on playback. (I've also done that with 25p stock if there was a move so that it is smoother though faster.)

An editor was suggesting that the same net effect is achieved by bringing in a shot into a 30p Avid project and then opening the clip in a 29.97 project. Is that really the case? Does the Avid play back the 30p at 29.97 fps, frame for frame? Or does the 29.97 project eventually drop a frame from the clip to keep the 30p in sync?

Thanks,

Dan








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Posted by: Dan McCabe <danlist@bestmail.us>
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