I'm working with a musician who conducts workshops for corporates. He's a percussionist and uses music and percussion to teach them stuff. This time around he's working with about 400 people in a huge ball room. He plans to split them up into groups of 40-50 and get each group to "perform" percussion with simple objects (or even hand claps/foot stomps). Considering there are so many people he wants each group to hear what the other groups are up to - as it's important to get everyone to perform together. So, he wants to mic up each group (unobtrusively) and use a PA system to amplify the sound. His brief was "Not too loud, just loud enough to reinforce the sound so that everyone can hear what's happening".
My initial thoughts were:
1- That's a lot of people! 2- Possible feedback issues 3- Can't use too many microphones/cables - something is bound to get knocked off/damaged/get in the way 4- Use multiple booms around the room, except being an indoor space there are bound to be complications.
Any ideas? Choices of microphones? Maybe go wireless?
I also thought of PZMs - but can't see the practicality in it.
All ideas however bizarre are welcome. :)