Hello I recorded my grand children on Christmas morning with X3 & Osmo found out i have no sound!! Anyway have sorted that for the future. I can view the video in the Go App and the sound is there from original must have used the iPad microphone. Even when I create just over 4 minute clips when I try the editor is there anyway to keep the original recorded sound as it has my Grandchildren's voices which I would love to keep?? Thanks

You need to turn the mic on in DJI go when you record.

Since currently the audio is in the cached video, you'll need to connect your iPad to iTunes, go to DJI Go, you should be able to find the cached video, and use some 3rd party software to get the sound track and merge it with the video in your Osmo.