Redundancy is wonderful.
Redundancy is really wonderful.
Really, redundancy is wonderful.
When recording sound (and video too, but c'mon... so few people get sound right) IF YOU CAN, record with proper redundancy.
What do I mean?
If I'm doing an interview with one person, I will place a lav on them, and boom them from above as well.
Then, I will create two duplicate channels simultaneously recording the lav and the boom, both at -10db.
So that's four tracks of audio for one interview subject.
Why do we do this?
Well, if all you do is lav, you're likely to get the best part of their story muffled and distorted.
That's because people who are not professional on-camera talent will touch their heart during the climax of whatever it is they're talking about.
And when you touch your heart, it's likely to be the most engaging, emotional part of the story.
Only having a lav on them guarantees you won't be able to use that part of the interview.
If you have a boom from above, however, you're covered.
And anyway, the boom sounds better.
But then having the two extra tracks at -10db ensures that when the subject screams or laughs or emotes in any way that's above your gain adjustment... well, now you're covered.
Those two tracks at -10db can be used to swap out the overdriven parts of your primary audio.
Personally, I learned this the hard way.
Sometimes these lessons are only learned the hard way.
But I'm writing this to help you from experiencing many of my prior movie set heartaches.