It seems like the majority of people who played my entry find out that the atmosphere and the wind noise are fine.
Well, I made it by making some random moves on Audacity, so if it can help some people in the future, I’m happy to share this little trick
-Generate a noise (white)
-apply a WhaWha effect (you can choose your parameters, but it seems like “Wha Frequency Offset” is better with more than 60%)
- apply Change Speed (I’ve used something like -60%, and repeat it until I’ve made something which convince me)
- Add a new audio track (ctrl + shift + n)
-Copy/Past your noise on this new track, with a very little gap
- Put the first track on “Left Channel”, the second on “Right Channel”
-Export it ;)
(Try to modify, appropriate this to make exactly what you want! [for example, apply more whawha with different LFO frequency to make a more complicated sounds])
Hope that will be useful for someone!