My dishwasher late at night during the wash cycle.

This is an old GE model that's definitely not up to the current low-noise standards, but it still works, which is all we really ask of it. Recorded with the D50's mics in XY stereo configuration, without a windscreen, on the gorillapod. Run time 2:15, with a 1s fade at the start and 4s fade at the end, but otherwise unprocessed.