Around 1990, Chattanoogan Sam Hall and his wife bought a mechanical white-noise generator to help them sleep after a neighbor's dog began yapping incessantly at night. "The neighbors went out of town ...

Between the incessant generator noise, the piercing honking of cars passing by, and the ever-present noisy street sounds, it seems impossible to have a quiet home in Nigeria. Not if you can take ...

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A chaotic drone of meaningless sound to lull the human brain out of its usual drive to latch on to patterns can at times be a welcome thing. A nonsense background din — like an old television tuned to ...