MarcoP87

Hello, Please check attached the MP3 file of a very annoying noise that is coming from the wall in my bedroom. Do you have any idea what it can be? The noise is a type of buzz that goes on and off randomly during the day and the night. I was thinking it might be the recirculating pump within an hypotetical boiler room attached to the wall on the other side. Feel free to move the topic to the most appropriate section of the forum Bedroom_Noise.mp3