i dont know what it is but from time to time i hear this whistling sound sort of like its coming from my rims/tires

i only hear it from one side and not always. when it starts to make noise it gets a little louder and i increase speed. I tried to have my friend drive while i watch car go to see what was going on and everytime we try it doesnt do make any noise but just wnat to know if anyone had this happen tot hem before

 

I have the same problem except it's on the driver side. This happened after I drove over some gravel and I took the car to Firestone to see if anything is damaged and they said everything is fine, he said since I got new rotors, that's what prob making the noise. Did you take it for a inspection just to make sure?