Description: Killer Doorbell Ring, Nice Loud Ding Dong Ring Noise.

Description: The vending machine area of a university with international students. Constant vending drone and changing panorama of students.

Description: a low rumble from construction outside the building. loopable.

Description: a low rumble from construction outside the building.

Description: supermarket atmosphere, with repetitive checkout scanning beeps.

Description: a cement apartment stairwell with light buzz.

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