I assumed audio is from a mic on the bike, you get a little bit of drone rotor noise when it’s close in the slower sections.
The flying is amazing, they show a bit of the glitchy, low-res feed that pilot gets into his goggles early on so incredible to get through all the trees and other hazards with that going on – there was a similar one from one of the urban DH races and he was having complete dropouts in many places. The drones also don’t slow down very well – a few places where he got really really close.
Cool to see a full top to bottom that isn’t a helmet/chest cam, there’s so much to that course beyond the huge jumps.