This IS the Avid L2: Re: [Avid-L2] Time vs. Quality Deinterlacing from Avid sequence

Thursday, October 16, 2014

Re: [Avid-L2] Time vs. Quality Deinterlacing from Avid sequence

I didn't really expect anything different than 2:2:2:4 or as you describe it 1:1:1:2 which is more correct in a progressive world. It's been a while but I remember doing a time warp and setting the input interlace or maybe progressive and setting output to 2:3 pulldown. The result was 2:2:2:4 until it was rendered and then it was 2:3:2:3. I forget what kind of project I was in for that but it was probably an SD 30I.

---In Avid-L2@yahoogroups.com, <cutandcover@...> wrote :

If you deinterlace 2:3 pulldown material, you end up with 1:1:1:2 pulldown. That's a given.

AA / BB / BC / CD / DD

throw away one field of each and it becomes

A / B / C / D / D

Not sure what you were expecting!

The only way this doesn't happen is if you blend the fields into frames. But then, you've got a bunch of blended frames, and I don't know if that's really any better.

Why don't you reverse telecine? That would give you 23.976p with no artifacts. Do the same first mixdown in the 1080 / 59.94i project, then open the sequence in a 1080 / 23.976p project and do another mixdown.

On Wed, Oct 15, 2014 at 9:53 PM, 'Mikeparsons.tv' mikeparsons.tv@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

See if they have a deinterlace setting on their media player...

Might make it a nonissue.

On 16 Oct, 2014, at 8:43 am, "bigfish@... [Avid-L2]" <Avid-L2@yahoogroups.com> wrote:

How long has the adaptive deinterlacing been around? I'm on SNDX 5.5.latest. Did it come along with TimeWarp? That I have I'll have to dig around and look for it. So far I did the suggested mixdown and switched to progressive. That yields 2:2:2:4 cadence even after rendering. I seem to get the same results with staying in 59.94I 1080 and mixing down and then putting a timewarp on the mixdown setting to interlace input and progressive output. This also yields a 2:2:2:4 cadence. Would adaptive deinterlace yield a smoother cadence? The reasons I'm deinterlacing are so the playback in the conference room doesn't show split field artifact on playback. I don't know what they are playing the files back on but it sound like they are just playing the file on QT player of some sort and they don't understand what happens when 2:3 pulldown is played on the progressive computer monitor. In play it's hard to see the split fields but I'm not at the office where they were concerned with the interlace file. It's a big time suck for a non issue in my book but I guess it's important to the presentation folks so I am trying to get the most workable approach. We will be delivering the final shows in interlace 59.94 anyways so this work is strictly for the presentation files.