Tinnitus (which I have) can sound (be heard) many different ways and different frequencies. Some people have a low 'wooshing' sound, other have a hissing sound, others have ringing, and others have a high-frequency noise. As indicated above, there are now (in our electronic world) many things in our homes that can cause 'noise': fans, lcd displays, Carbon Monoxide detectors, toys, etc. If you are older than 50 and have tinnitus, have a young person come to your home and help you locate the problem. For sure, the noise is not from your neighbor's satellite dish or any of their electronics. The problem is in your home. Good luck