[trhway]

I think you can do it from a distance, just need to have directed microphone (or use laser “microphone”)

[shitpostbot]

That makes sense. It's probably less "doing crazy convolution calculations on how sampled ambient noise changes as the helicopter gets close to a pole", and more "rotten wood vibrates slower"

[gregoryl]

FYI, you've been hellbanned for seemingly 6 years. Probably the account name triggering a spam filter?

Email [e-mail], they may be willing to unban you, so other people can see your posts.