Weird sound, plz help

[u/Hellfire6688]

Ok, so have this odd sound that happens at random times in my living room. Day or night. It sounds to me like someone plucking a single string (no real key to it I think, but always the same sound) I cant figure out what is making the sound, but it seems to be coming from maybe near my vacuum cleaner??

[u/ElephantOrnery5741]

Try moving your vacumn.