DJI Osmo 4K files are jerky and stutter in iMovie

Came upon choppy issue playing back DJI Osmo 4K files in iMovie? If so, you may wish to read this post. It displays a workaround to make iMovie work with Osmo 4K footage smoothly.
choppy issue playing back DJI Osmo 4K files in iMovie

DJI Osmo 4K media stutters in iMovie
“Hi there, just imported my first 4K videos from DJI Osmo to iMovie on my iMac and I’m finding that when I play them back they are choppy and jerky as if I’m watching a series of photos. Is there anything I can do to go through this issue? Any help would be appreciated. Thanks.”

OK I was assuming that your iMac is not powerful enough to handle 4k footage. However, if you wish to edit DJI Osmo 4K files in iMovie on an old Mac, you may be able to down-convert the footage first and make it work. You can follow the instructions below to down-scale DJI Osmo 4K files to 1080p AIC for use in iMovie smoothly.

How to convert Osmo 4K video for iMovie editing?

Software requirement
HD Converter for Mac
You can download a demo to see if it is able to do what you want in simple steps with good quality.
make iMovie work with Osmo 4K footage

The steps:
Step 1: Open up HD Converter for Mac as a DJI Osmo 4K Converter for iMovie. When its main interface comes up, click ‘Add File’ to load your source media.
DJI Osmo 4K media stutters in iMovie

Step 2: Select output format for your editing program
To convert DJI Osmo 4K movies to AIC MOV for iMovie, from ‘Profile’ list, choose ‘Apple InterMediate Codec (AIC)(*.mov)’ as output format under ‘iMovie and Final Cut Express’ column.
import 4K videos from DJI Osmo to iMovie
If you’ve loaded a number of video clips to do batch conversion, please do remember ticking off ‘Apply to All’ option before you start.

Step 3: Custom video and audio settings (optional)
If necessary, you can click ‘Settings’ button and go to ‘Profiles Settings’ panel to modify video and audio settings like video encoder, resolution, video bit rate, frame rate, aspect ratio, audio encoder, sample rate, audio bit rate, and audio channels. 3D settings are also available.

Step 4: Begin DJI Osmo 4K video to 1080p AIC Conversion on Mac
When ready, click ‘Convert’ to start format conversion. Once the conversion process is complete, you can click ‘Open Folder’ button to get the generated AIC MOV files for editing in iMovie with optimum performance.

If you don’t want to wait for the entire conversion process, you can tick off ‘Shutdown computer when conversion completed’ and go away to do other things.

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