A pneumatic air tool (jackhammer) was used to lower some concrete blocks on the exterior of our garage. I was inside the house recording it with a zoom h2 recorder. So this was recorded through an insulated wall. This is the shorter recording.
You can edit it in your own way , resample it , eq ,compress , do whatever you want. Have fun ! :)i`ve created it by looping a hi-hat , and then i vocoded and eq-ed the result.