OHM - Indian style

The original ohm stands for 3 core sounds and an extra - the silence at the end.
A - the beginner, shortest sound
U - the second, longer sound
M - third, longest one...

But here as I experience, there is a 4th sound added, which is.

Ooooooo - (cows from the street)

So altogether would sound as: Oooohhhhmmmmmoooooooooo