Latest post Fri, Feb 10 2017 3:08 AM by jef. 13 replies.
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  • Sat, Jul 19 2014 12:43 AM

    • Ssnygg
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    Convert/Conform 30fps to 24 without dropping frames

    I've got a lot of stock footage aerial shots shot at 30fps that I need to use on a 24fps project.  There's no sound, so the best visual results would be a 1 to 1 frame transfer (effectively making the aerial shots slightly slow mo playing back at 24fps).  These are smooth motion shots, so you really notice the 6 frames missing when you do a regular conversion from 30fps to 24.

    I suppose I could import the video into Photoshop, creating a film strip which I then move over to after effects to conver the filmstrip to video and then bring that into Avid, but there HAS to be an easier simpler way.

    Any ideas?

    Running MC 7.0

    I have several systems. 1-Media Composer ver 7 1-Media Composer 8.8.4 1-mac Express 2.2 AB/VB Targa set up The computers I use include: 1-Intel core i7... [view my complete system specs]
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  • Sat, Jul 19 2014 1:01 AM In reply to

    • Ssnygg
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    Re: Convert/Conform 30fps to 24 without dropping frames

    Oh and one additional fly in the ointment.  it's 30fps interlaced, so I gotta make sure to get the field in the right order.

    I have several systems. 1-Media Composer ver 7 1-Media Composer 8.8.4 1-mac Express 2.2 AB/VB Targa set up The computers I use include: 1-Intel core i7... [view my complete system specs]
  • Sat, Jul 19 2014 1:04 AM In reply to

    • jef
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    Re: Convert/Conform 30fps to 24 without dropping frames

    Very simple really.

    AMA link the file.  Drop it into your 24fps project.  You will see a small green dot on it.  This tells you that the clip has what Avid calls a Motion Adapter on it.  A fancy term for a Timewarp effect. 

    To the left of your timeline you will see an icon that looks like a film frame that is leaning to the side.  This is the motion effect editor.  Press it.  A speed editor will open.  At the upper right there should be a button labeled Promote.  Press this.  At the bottom will be a user interface field with a numerical percentage in it at about 80.00.  Change this to 100.00.  Make sure that the Source tab on the left side of this tool is set to Both Fields.

    You are done.

    Jef

     

    Avid DS 11.0.2 R.I.P | MC "Well, it depends ..." mostly 8.10.0 but playing w 2018.11| OS 10.11.x - various MacPro Towers - home system MacPro... [view my complete system specs]

    _____________________________________________

    Jef Huey

    Senior Editor

    Old Stuff  http://vimeo.com/album/3037796

  • Sat, Jul 19 2014 1:09 AM In reply to

    • Ssnygg
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    Re: Convert/Conform 30fps to 24 without dropping frames

    So I guess it's 60 fields per second to 24 fps without losing or duplicating any fields is what I'm looking for.

    I have several systems. 1-Media Composer ver 7 1-Media Composer 8.8.4 1-mac Express 2.2 AB/VB Targa set up The computers I use include: 1-Intel core i7... [view my complete system specs]
  • Sat, Jul 19 2014 1:11 AM In reply to

    • Ssnygg
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    Re: Convert/Conform 30fps to 24 without dropping frames

    Awesome.  Thanks.  I will try that.  (first I gotta figure out how to import as AMA:)

    I have several systems. 1-Media Composer ver 7 1-Media Composer 8.8.4 1-mac Express 2.2 AB/VB Targa set up The computers I use include: 1-Intel core i7... [view my complete system specs]
  • Sat, Jul 19 2014 1:19 AM In reply to

    • Ssnygg
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    Re: Convert/Conform 30fps to 24 without dropping frames

    Aweseom.. That was soooooo easy.. Thanks:)

    I have several systems. 1-Media Composer ver 7 1-Media Composer 8.8.4 1-mac Express 2.2 AB/VB Targa set up The computers I use include: 1-Intel core i7... [view my complete system specs]
  • Sat, Jul 19 2014 2:24 AM In reply to

    • jef
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    Re: Convert/Conform 30fps to 24 without dropping frames

    You are welcome.  Pass it forward.

    Jef

    Avid DS 11.0.2 R.I.P | MC "Well, it depends ..." mostly 8.10.0 but playing w 2018.11| OS 10.11.x - various MacPro Towers - home system MacPro... [view my complete system specs]

    _____________________________________________

    Jef Huey

    Senior Editor

    Old Stuff  http://vimeo.com/album/3037796

  • Mon, Feb 6 2017 2:05 AM In reply to

    • dew
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    Re: Convert/Conform 30fps to 24 without dropping frames

    Hey my google search brought this up as I am trying to do the same but for a music video. The problem is I have a 60fps I am trying to promote to 24fps. I promotes to 250% which is suppose to get me to the right sync speed to match the video with the song. Any idea on how to get the video to synce up with the song? I want to have the slow body movement but have the words match the correct speed of the audio.

  • Mon, Feb 6 2017 2:09 PM In reply to

    • jef
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    Re: Convert/Conform 30fps to 24 without dropping frames

    Going to take a wild swing at this.

    I think you are going about this in the wrong way.  Years ago I read a piece on how U2 did a video much like you describe. Only they wanted action to be fast, not slow.

    They changed the speed of the play back track - slowed it WAY down I believe - and then had the band perform to the slowed track.

    When the footage was adjusted in post to synce with normal speed track they had the result they wanted.

    OK Go did something similar recently.   

    http://www.rollingstone.com/music/features/inside-ok-gos-latest-record-breaking-music-video-marvel-w452114

    Not saying your way will not work, just have not been able to do the math yet.  Math is not my strong point ......

    Good luck,

    Jef

    Avid DS 11.0.2 R.I.P | MC "Well, it depends ..." mostly 8.10.0 but playing w 2018.11| OS 10.11.x - various MacPro Towers - home system MacPro... [view my complete system specs]

    _____________________________________________

    Jef Huey

    Senior Editor

    Old Stuff  http://vimeo.com/album/3037796

  • Tue, Feb 7 2017 6:55 AM In reply to

    • dew
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    Re: Convert/Conform 30fps to 24 without dropping frames

    Hey, yes it is the same  concept just in reverse of what I am trying to do. I did have the artist perform the song twice the speed so that it when I brought it in post and slowed it down it would sync with the correct speed of the song. Problem is, it is not syncing up correctly. I bring the 60fps footage into the 24fps project via link media. I promote the footage with the motion effects editor. From my understanding this should place the footage at the proper sync speed (250%) that would allow it to be synced correctly with the audio. That is not the case unfortunately. Not sure what step I am missing. Any thoughts would be greatly apperciated. 

  • Tue, Feb 7 2017 6:56 AM In reply to

    • dew
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    Re: Convert/Conform 30fps to 24 without dropping frames

    that video by Go is really cool by the way. Wonder how long it took them to figure all that out. 

  • Tue, Feb 7 2017 3:04 PM In reply to

    • jef
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    Re: Convert/Conform 30fps to 24 without dropping frames

    dew:

    Hey, yes it is the same  concept just in reverse of what I am trying to do. I did have the artist perform the song twice the speed so that it when I brought it in post and slowed it down it would sync with the correct speed of the song. Problem is, it is not syncing up correctly. I bring the 60fps footage into the 24fps project via link media. I promote the footage with the motion effects editor. From my understanding this should place the footage at the proper sync speed (250%) that would allow it to be synced correctly with the audio. That is not the case unfortunately. Not sure what step I am missing. Any thoughts would be greatly apperciated. 

    So when it is not syncing up, what result DO you get?  I am no math genius, so I would take the brute force method of finding the longest take and just keep fiddling with the timewarp setting till something sticks.

    I would not expect the default TW setting generated by Avid for 60fps placed in 24 to work.  Have you tried 100%? 

    Jef

    Avid DS 11.0.2 R.I.P | MC "Well, it depends ..." mostly 8.10.0 but playing w 2018.11| OS 10.11.x - various MacPro Towers - home system MacPro... [view my complete system specs]

    _____________________________________________

    Jef Huey

    Senior Editor

    Old Stuff  http://vimeo.com/album/3037796

  • Fri, Feb 10 2017 2:50 AM In reply to

    • Ssnygg
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    Re: Convert/Conform 30fps to 24 without dropping frames

    If your project is 24fps, 250% is indeed 60fps.  But did you play the music at 250% or at 200%?

     

    To fix let's do some algebra.

    24 x (250/100)=60

    24 x (200/100)=48 (the speed you should have shot the footage at if you played the audio at 200%)

    24 x (200/100) x X=60 (where X=your mistake)

    divide both sides by 24 x (200/100) and you get X=1.25

    Plug that back in for X and you get.

    24 x (200/100) x 1.25 =60

    But avid doesn't say % x my screw up.  It just has %, so you have to combine (200/100)x1.25 into one number.  Do the math and you get (312.5/100)   

    So your answer is 312.5 % for a full fix if you shot at 60fps and want a 24fps timeline and played the music at half speed.  of course, if you shot drop frame as opposed to true 60fps, your numbers will be slightly different.  If you make your timeline 30fps, your math is easier.

    I have several systems. 1-Media Composer ver 7 1-Media Composer 8.8.4 1-mac Express 2.2 AB/VB Targa set up The computers I use include: 1-Intel core i7... [view my complete system specs]
  • Fri, Feb 10 2017 3:08 AM In reply to

    • jef
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    Re: Convert/Conform 30fps to 24 without dropping frames

    Glad someone with a math mind chimed in.  Big Smile

    Some comments though.

    1. There should be no difference whether the TC was NDF or DF.  There is no speed difference there.  Just a counting differnce.

    2. The OP has been saying 24 fps.  I would guess they really meant 23.976.  Unless they were planning on a cinema release only.  Possible.

    Jef

    Avid DS 11.0.2 R.I.P | MC "Well, it depends ..." mostly 8.10.0 but playing w 2018.11| OS 10.11.x - various MacPro Towers - home system MacPro... [view my complete system specs]

    _____________________________________________

    Jef Huey

    Senior Editor

    Old Stuff  http://vimeo.com/album/3037796

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