Toyota Corolla Hatchback sounds like helicopter

[Dawa]

My Toyota corolla hatchback Collection 2021 sometimes sounds like helicopter or sounds in aeroplane cabin.  It hurts my hearing. It happens not always but sometimes especially during highway drive or few hours continious drive.It happens on High speed or Even on low speed like 50,60kmph. I had spoken to the toyota authorised service centre but they could not detect the fault. Does anybody has same problem.

[TonyHSD]

What is the engine and transmission? 
Mileage and at what rpm ? 
Perhaps a video with the sound share and you can get some suggestions. 

[Chippy01]

Check to see if one of your back windows isn't open a bit, as that can cause the sound you describe.

[JasonM]

Sounds like you may have a door or window seal damaged somewhere allowing pressure fluctuations at speed.  I suggest go around all the doors and boot to see if they are all in tact.  

[Trewithy]

21 hours ago, Chippy01 said:

Check to see if one of your back windows isn't open a bit, as that can cause the sound you describe.

I totally agree as I speak from experience.  One of the windows is not fully closed.  

[TonyHSD]

Windows helicopter sound happens when window is open half or more and we do over 40-50mph, imagine op drives like that and it’s not aware.