These are some guideliness and links for encoding best practices when uploading content to Rev. In general these recommendations boil down to:
· Use the MP4 format (H.264 video / AAC audio)
· Use a set frame rate that matches your project framerate (instead of Automatic)
· If possible use the “Hint”, “Fast Start” or “Web Optimized” option to put the moov atom at the beginning of the file.
iMovie
YouTube has good recommendations for converting iMovie videos. The important point is to explicitly set the Frame Rate, uncheck Frame Reordering, and choose the “Prepare for internet Streaming”: Fast Start option.
https://support.google.com/youtube/troubleshooter/2888402?hl=en&ref_topic=2888603#ts=2888407
Camtasia
Camtasia’s own website has some good recommendations. Again, the key is to explicitly set the Frame Rate, as well as to use the “MP4” container instead of “MOV”.
https://support.techsmith.com/hc/en-us/articles/203727378-Camtasia-Mac-Optimal-settings-for-exporting-video-that-will-be-imported-to-iMovie-iDVD-or-Final-Cut
Adobe Premiere
Generally the “Youtube” settings should work fine with Rev. The one change that should help ensure A/V sync is to explicitly set the “Framerate” value to match the framerate of your original project (up to a maximum of 30fps). I’ve attached a screenshot that shows where to change the framerate during export.
Handbrake
The program Handbrake (https://handbrake.fr/ ). This program does provide quality video output if you choose to use it. Just select the “Normal” profile for most video content, and then in the “Video” tab choose a constant framerate instead of variable framerate (though Handbrake usually avoids A/V sync issues even with variable framerate).
