Here is quite old recording I did around 3 years ago. It’s sound of a tram passing bridge, recorded with a contact mic attached to its metal railing.
It is recorded in my home town Krakow, Poland, on one of it’s bridges.
Once, stucked in traffic jam in car, I heard (felt?) it like a earthquake and knew I had to record it.
I used it as low end component for train pass scenes, feeding sub, which worked nice.
There is also very nice metal rattle sound, coming from road sign attached to railing.
Recorded with Barcus Berry Plenar Wave System 4000 contact mic on Sony PCM D-50 (which was my main recorder at that times) with Sound Devices MixPre as a frontend.
You can download it for free, if you like it. Watch your levels when pitchshifting down, it’s looow.
