0 Replies Latest reply on May 28, 2017 5:29 PM by gerikp10383985

    Variable Frame Rates and Sending Projects to Premiere Pro

    gerikp10383985 Adobe Community Professional


      I just wanted to put a note out there for those who are using Adobe Clip and sending their projects to Premiere Pro through Creative Cloud.


      It's a known problem that Premiere Pro doesn't work with variable frame rates (VFR) that well. I know I've struggled a time or two after sending an Adobe Clip project to Premiere Pro and finding that my audio and footage is out of sync, or drifts,  because of VFR.


      I decided to test out the different video camera apps currently on my iPhone and see which ones shoot VFR and which ones shoot Constant Frame Rates. I ran these tests on an iPhone 7, iOS 10.3.2 and all the apps had the latest updates.


      After testing all the apps I shoot with, only the native iPhone Camera app shot video with what looks like a constant Frame Rate, which was surprising to me, because from what I can find online there's no documentation for coding constant frame rates in to a camera app.




      Here's the apps I tested that recorded clips with Variable Frame Rates:

      • FiLMiC Pro
      • Moment
      • ProMovie


      Apps with Constant Frame Rates

      • Apple's native iPhone Camera App
      • Adobe Clip (Which I believe just uses the native camera app. Can anyone confirm that?)


      I really love shooting with the FiLMiC Pro and Moment apps. They have great features! But if I'm going to shoot an interview or a music performance or something like that where audio sync is important, I'm going to just use the Camera App from Apple.


      As I side note I also found that on my iPhone if I took a video clip shot with FiLMiC Pro and put it in Adobe Clip and then exported that clip to my camera roll, that clip now has a Constant Frame Rate and works fine in Premiere Pro. So if you run in to trouble that might be a bit of a workaround (a little awkward perhaps).


      I received this advice from FiLMiC Pro: "The app shoots as close to a constant frame rate as can be supported right now by the iOS video imaging framework. Shorter clips tend to be more 'rock solid' in frame rate adherence. Longer clips can end up with a variable frame rate. This is due to how the iOS framework prioritizes certain attributes over frame rate (including exposure and audio sync). (30fps is the most reliable frame rate setting as this is the native frame rate for iOS and why clips shot with the native camera are generally spot on at 30fps ...probably 90% of the time or more)."


      Is anyone experiencing something different than I am?


      Also, what other video apps are you using? I might like to test some others out.


      And if you think I got something wrong, let me know.


      Message was edited by: Gerik Parmele