Latest post Sat, Oct 14 2017 12:03 PM by Mercer. 22 replies.
Page 2 of 2 (23 items) < Previous 1 2
Sort Posts: Previous Next
  • Tue, Jun 20 2017 1:42 PM In reply to

    • Serleejus
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • Posts 364
    • Points 4,715

    Re: Help with 24fps - m2t files not linking or importing Media Composer with Symphony

    Pat Horridge:

    Ok MC V8.8.0

    Can't AMA link (HDV content) MC suggests import but to import the project rate must match the clip metadata rate.

    So create a 720 23.98P Project and import the "24fps" clip. Imports as a fast import.

    Then create a 720 59.94P Project and uimport the "60P" clip. Imports as fast import.

    Go back to 23.98 project and use open bin to access clip from 59.94 project. Clip will play at "normal" speed as it will be motion adapted down to 23.98.

    To get slow mo use source settings on the slowmo clip. On the PlayBack rates tab change from Clips fps (59.94) to Project FPS (23.98) You will now get slowmo playback.

    These are HDV clips so the fast import will leave you with HDV media. MC shows the video as 720p/23.976 and 720p/60

    So not quite sure whats really going on. The only way to tell is to actually film a known duration or a running stop watch and check the eventual playback is correct.

     

    So what would be the changes to your above? I want a 24fps 720p project.

    so all the clips in the end fall into this 24fps project, for festivals, VOD etc. - or should I put it all in a 23.976 timeline?

     

    Thank you!

  • Tue, Jun 20 2017 2:40 PM In reply to

    Re: Help with 24fps - m2t files not linking or importing Media Composer with Symphony

    Its not uncommon for recorders cameras etc to work with more standard FPS as more apps will understand them that way.

    True 24fps and 60fps don't have any broadcast TV use.

    The question is were they recording 24FPS and 60FPS but flagged as 23.98 and 59.97

    ACI Moderator. I'm not employed by Avid or work for them. I just do this in my spare time. Symphony V8.6 / 8.3.1 HP Z400 system [view my complete system specs]

     

    Broadcast & Post Production Consultant / Trainer  VET

     

    T 07581 201248 | E pat@vet.co.uk | W www.vet.co.uk |


    Media Composer V8.2 Review Background Render

    -

    Follow me on Twitter Pat_H_VET

  • Tue, Jun 20 2017 3:23 PM In reply to

    • Serleejus
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • Posts 364
    • Points 4,715

    Re: Help with 24fps - m2t files not linking or importing Media Composer with Symphony

    That's what it would seem has happened as the brochure and tech specs state the camera as TRUE 24fps an the recorder was made for that specefic camera. Any thoughts?

     

    and about the workflow you suggested... pretty much ntsc and pal and all the frame rates seem to work on all tv's now as they are all flat panels. (or am I incorrect?)

     

    assuming I want a 24fps 720p project so all the clips in the end fall into this 24fps project, for festivals, VOD etc.would your workflow be any different than what you suggested?  - or should I put it all in a 23.976 timeline?

     

    Thank you!

     

     

  • Fri, Jun 23 2017 9:44 AM In reply to

    Re: Help with 24fps - m2t files not linking or importing Media Composer with Symphony

    The camera may have supported true 24fps while the Firestore recorder might not have.  OR, the camera might have supported 24.000 recording, but when outputting over the FireWire port as HDV, might have live-converted it to 23.976.  I don't know - but that seems to possibly be the case here.

    My gut feeling is - edit in the format you recorded.  If you recorded 23.976, then edit there.  However, I practically never work with 24 vs 23.976 issues, so if someone else with more insight on that front advises differently, take that advice.

    (SYSTEM 1) iMac Late 2012 27" (13,2), Mac OS X 10.12.6, Avid Media Composer 8.9.2 w/Symphony, Intel Core i7 3.4 GHz, 32 GB RAM, NVIDIA GeForce GTX... [view my complete system specs]
  • Fri, Jun 23 2017 11:18 AM In reply to

    Re: Help with 24fps - m2t files not linking or importing Media Composer with Symphony

    If the camera created 24FPS but the recorder flagged it as 23.98 then if you treat it as 23.98 you are effectivley slowing it all down slightly.

    I doult any sort of framerate conversion happened and if it did the content would be messed up. The most likely explaination is the recorded files are flagged as 23.98 but came from a 24FPS source.

    So the files are incorrectly flagged as 23.98

     

    ACI Moderator. I'm not employed by Avid or work for them. I just do this in my spare time. Symphony V8.6 / 8.3.1 HP Z400 system [view my complete system specs]

     

    Broadcast & Post Production Consultant / Trainer  VET

     

    T 07581 201248 | E pat@vet.co.uk | W www.vet.co.uk |


    Media Composer V8.2 Review Background Render

    -

    Follow me on Twitter Pat_H_VET

  • Fri, Jun 23 2017 2:10 PM In reply to

    • Serleejus
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • Posts 364
    • Points 4,715

    Re: Help with 24fps - m2t files not linking or importing Media Composer with Symphony

    Pat Horridge:

    If the camera created 24FPS but the recorder flagged it as 23.98 then if you treat it as 23.98 you are effectivley slowing it all down slightly.

    I doult any sort of framerate conversion happened and if it did the content would be messed up. The most likely explaination is the recorded files are flagged as 23.98 but came from a 24FPS source.

    So the files are incorrectly flagged as 23.98

     

     

    thank you for the info... I did call JVC and did indeed confirm the camera is at exactly 24fps. That was the whole idea behind that camera. True film speed.

     

    Now, do you think the besl workflow would be to fast import as media composer recognises the clips. Whether 23.98 o 59.94 etc, each in their own project. Then create the main project as 24fps then do as you suggested and link th bins and set the playback rate for each clip?

    Would you mind briefly explaining how to do such?

    Thank you

    Thank you

  • Fri, Jul 7 2017 5:39 AM In reply to

    • Serleejus
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • Posts 364
    • Points 4,715

    Re: Help with 24fps - m2t files not linking or importing Media Composer with Symphony

    Pat Horridge:

    If the camera created 24FPS but the recorder flagged it as 23.98 then if you treat it as 23.98 you are effectivley slowing it all down slightly.

    I doult any sort of framerate conversion happened and if it did the content would be messed up. The most likely explaination is the recorded files are flagged as 23.98 but came from a 24FPS source.

    So the files are incorrectly flagged as 23.98

     

    All worked with your suggestions. Thank you to all!

  • Sat, Oct 14 2017 12:03 PM In reply to

    • Mercer
    • Top 500 Contributor
    • Joined on Thu, Apr 15 2010
    • Posts 371
    • Points 4,690

    Re: Help with 24fps - m2t files not linking or importing Media Composer with Symphony

    Despite what JVC might say I can confirm the HDV 720p range @24fps is definitely, in reality 23.976. I have a HD100 camera and the BR-HD50 deck. Although I mainly use it with 25fps, all tests in 24fps and Avid have been through 23.976 project types. It produces 24p in exactly the manner of Panasonic DVCPro-HD Varicam.

    What JVC means is that it does shoot real progressive 24fps within the 59.94 'NTSC' TV standard. The people you spoke to at JVC simply don't understand the distinction.

    With 25fps I use a BMB Shuttle with HDMI from the BR-HD50 and RS422 deck control via Keyspan. I use the deck to crossconvert to 1080i which it does with high quality and better error correction than Firewire. I have not tried 24p with the Shuttle and I am not sure how that would work. IIRC you have to set a 23.976 project and set the deck to 1080i60 (in this instance) and fiddle with the Varicam option in capture (can't remember which way).

    In any case 100% is 23.976 not 'true 24p'.

Page 2 of 2 (23 items) < Previous 1 2

© Copyright 2011 Avid Technology, Inc.  Terms of Use |  Privacy Policy |  Site Map |  Find a Reseller