How to sync Audio and Video from different sources in iMovie

The external audio track (green) is aligned with the original video+audio track (blue)
Here you can see that our ending clap references are out of sync
Dragging the pin icon will allow us to time-stretch the video track

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Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store