The Resident’s who support the videoing and iMovie editing to record activities - have a need to “rubber band” the audio from handheld camera’s to out wall mounted camera’s to match the audio to the filmed mouth / oral f

Audio sync can be tricky when audio is recorded on a devce different than the video.

In iMovie you can use the speed editor to very slightly increase or decrease the speed of either the video or the audio clips, or both, to bring them into sync. Slight variations will not be noticed. You can decide how much variation is satisfactory for your purposes.

So, control-click on the video or audio clip. From the pop up menu that appears, choose Show Speed Editor. That will cause a speed adjustment handle to appear in the upper right hand corner of the clip. Slide the handle to the left to compress (speed up) the clip, and to the right to stretch (slow down) the clip. It helps first to expand out the timeline using the slider located above and to the right of the timeline.

— Rich