I'd be very surprised if that's the explanation and would rather suspect something like the "noisy GIFs"[1], where a strong visual cue may cause the brain to at

I'd be very surprised if that's the explanation and would rather suspect something like the "noisy GIFs"[1], where a strong visual cue may cause the brain to attach a sound that sounds reasonable. That's also quite easy to verify - since we have visual sky surveillance, why not add microphones and confirm it really happens, no need to rely on random reports. [1] https://www.reddit.com/r/noisygifs https://www.reddit.com/r/noisygifs