I found this sound coming from a wall of a grocery store at night. Recorded with my mobile phone, so the passing cars are a bit transformed etc.
location: 52.48834, 13.44905

humming wall

some of the sounds were sampled from a metal piece that was cut for a sheep puzzle, using a contact microphone.

Antisheep

ISRE

VDRE

Collector

Internal

as many others, I got inspired to play with the following open collab track:
https://soundcloud.com/blink-twice-archival/ch-4-120-bpm-4-1

Have a listen at the full playlist: https://soundcloud.com/blink-twice-archival/sets/ark-dambient-open-collab

This track is not available anymore.

Other tracks from name constant