I live in an industrial park nearly right across the street from a place that casts cement paving stones. The braaaam sound is exactly the sound that the huge

I live in an industrial park nearly right across the street from a place that casts cement paving stones. The braaaam sound is exactly the sound that the huge vibrating platform makes when settling the cement in the molds. So much so that I think it might actually be what inspired this sound. The interesting thing is that every day sounds like an apocalyptic alien invasion around here!