When Marco Polo heard it in China, he suspected evil spirits. When residents of Copiapo, Chile, heard it emanating from a sandy hill, they dubbed the peak El Bramador, for its roars and bellows.
Scientists today call it "singing sand," but they're all referring to the same thing: As sand grains shuffle down the slopes of certain sand dunes, they produce a deep, groaning hum that reverberates for miles.
But how these dunes produce this "music" remains a much debated mystery. Another vexing question is why different dunes sing different tunes—and how can some even sing more than one note at a time?
Just last week we had a cyclonic depression and winds at 45-60 kmph were blowing, all trees were swaying and when the windows were closed, somewhere through a small hole the winds were comming and making a whispering noise,, wooooooooooiiimmmmmmmmmmmmmm like that, my mom listened it and even i listened it, i then immediately thought of EVPs