I've seen examples where someone is able to slow down a 24p clip in a 24p sequence with no real visible ill effect, which is incredible and something that used to only be possible with some extreme After Effects work. Optical Flow is a newer Adobe Premiere technology that can actually add frames, or give the illusion of added frames, to footage that is slowed down beyond where it can be normally. That is because it is, as you are asking Premiere to show frames that don't exist. That said, if you choose to slow a clip down further, say below 20% on the previous example, you will start to notice jittery footage that looks like it's skipping around. For clips that are shot at higher frame rates that you wish to slow down (like 60 or 120 frames per second), the type of Speed technology employed makes pretty much no difference as long as your percentage of slowed speed doesn't go any lower than the Sequence frame rate (for example, 120 frames per second can be slowed on a 24p sequence by a factor of 5, or 20% of the total Speed, without any issues).
Myself and other editors I know tend to use Frame Sampling (as it is the default) or Optical Flow, mainly leaning on Optical Flow lately because it is a more advanced technology.
Premiere Pro has three different technologies that can be used to apply Speed changes, designated as Frame Blending, Frame Sampling, or Optical Flow. Speaking of Premiere, Rush files still work seamlessly with Premiere Pro, so projects started on Rush can be opened and completed inside of Premiere Pro. This is an advancement on top of the Speed/Duration feature currently found in Premiere, which does not automatically adjust pitch to match changes in Speed. “Maintain pitch” in the speed panel takes care of this by preserving the original pitch of your audio at any speed! It’s enabled by default, but can be turned off if you prefer. Typically, speeding up footage will raise your audio’s pitch (think mouse voice), while slowing down footage will lower it (think of a deep robot voice). Speed is represented as a percentage, as is the case in the Speed/Duration feature in Premiere, with 100% being real-time, and values below being slower while values above are faster.Īdditionally, Rush is able to match pitch with changes in clip speed.
Today marks the first major feature update to Rush since its announcement (though they did add support for Android and the ability to export 4K since launch), and though it is a pretty "basic" feature in Premiere, it's one that is used by just about every editor in some capacity: Speed/Duration.Ĭalled just "Speed" in Rush, the new feature allows you to slow down or speed up footage, add adjustable ramps, and maintain audio pitch all in one feature. At launch, this same interface was visible on both iPad and the desktop computer. When it was first announced, it looked and felt like an evolution of Premiere on a new codebase that would not only be faster than the current Premiere, in theory, but also could be translated to a host of devices all running the same interface. It is possible to turn the syncing off after you have completed the project.Development on Adobe's mobile video editing platform, Rush, has been quiet since the launch of the product in October of 2018.
It’s recommended to only use the feature for projects that require it. It’s worth noting that this requires an active internet connection, and one should be careful with how much mobile data this feature uses, if your mobile device is not on a WiFi network.Īlso, each user only has 20GB (gigabyte) of storage in the Creative Cloud. When you get home you can open it on your desktop computer and continue editing there. You can take video on your phone and start editing it right away. Using Adobe Creative Cloud storage, you can easily hand over projects from one device to another. If it's not available for download, it may be that your device isn't compatible. The app is available on both Apple iOS and Android devices, and by logging in with your Creative Cloud account you will have access to all its tools on your mobile devices.Īt this writing moment (May 2019) Adobe has advised that Premiere Rush only works on a handful of Android devices. Premiere Rush is supported on mobile devices as well as desktop and laptop computers.