Wilfred,
 
Wv>WD> We're planning on using drones within the year during concerts for
Wv>WD> video-recording purposes.
 
Wv> Would that be save to operate them above and around public? And are they
Wv> quiet enough to not disturb the concerts sound?
 
... with a safety-line ... lake a trapeze ...
 
BTW, I suppose you've never been at a Metallica concert ... or Chicago ... or
Queen ... never heard anyone play "that" loud.
 
 \%/@rd

--- D'Bridge 3.99