answers
We have a small production company that specialises in aviation projects, such as in cockpit video, air shows, etc.
A small mic in the ear peice is a good option, however for a direct feed, there are adaptors that plug in line with the headset.
I actually recomend the ear piece mic option.
As to sync; there is very little need for frame accurate sync, but if you want to synce professionally, you need to make a visible sound.!!!!!!! Thtas what a clapper board does, you can bang any two items together, provided in shot, and mic close. The start of the noise on the audio track, and the frame when this happens are synced, in the edit.
To edit you can either use Microsoft Movie Maker, or Premiere Pro, or Final Cut. Depends on equipment and budget.
If you want an intro to our people PM please.
glf