http://enxx3bysve3s7deur2pz6fdyezucnxotvr257byhbvtmjxq52tmbdnyd.onion/ausneets/res/870126.html
This is another plausability simply that the electrical wiring is bad somewhere in the walls. But ive lived here for a long time when i was a kid and as an adult and this noise only started fairly recently in the last 1-2 years. So this is less plausable. I really only have 2 plausabilities due to the fact that several of my neighbours have moved out and new ones have moved in and the fact that the noise has never stopped.