Didn't work for me as I have this annoying frequency sound somewhere in my space that I can only hear from my bed when it's quiet. I can usually blend it out but as I was focusing on these, that sound suddenly became unbearable. Please help! I hate this noise and haven't been able to locate where it comes from for months now!!
Ah! Well, if you still hear it when covering your ears it's probably tinnitus. Noise-canceling headphones will help you verify that...
someone3011