Backtraces last year.

Backtraces last year. After that time I did the back traces the IPs hid and became just asterisks .And when I ran the traces I had no browsers open. I wonder why the sound goes suddenly up, then back down. I have no control over it. When I used to make guitar videos it did it some, but usually for some reason the sound was mostly subdued. And every now and then the sound gets real loud, then quiets down again. I tried all kinds of stuff, nothing worked, maybe the recording part of this iPhone is going out?