Tried to emulate sound of a large motor starting. This sound is actually from an air raid siren. Reminds me of some transit bus but also sounds like some electric motor.
Escalator sound (loopable) with little bit of eq and compressor. Recorded at burquitlam skytrain station with portable sony digital recorder in coquitlam, bc, canada.
Recorded by my partner, who was out walking the dog, too close to the road again. I hear three motorcycles and a passing car. As usual, the guy with the smallest engine was working it the hardest.
It's a prusa 3d printer doing mesh calibration, which is performed once before each print,. In this case it's testing 49 on the print bed, instead of the default 9.