I get the same problem on my iPhone 7 and SE with a pulsing static noise. But my iPad mini has a constant static but it is very faint and can only hear it when speaker is held to my ear. What’s the solution?
Same problem here with both an iPhone 6 and 7. It started with an update. If sounds are off I hear a buzzing sound and I have to put the phone on silent. Same behavior on LTE or witeless networks.
I have just deleted my candy crush app off my phone as I was hearing a crackling sound coming from my phone ear speaker, it actually sounded like someone was on the other end of the phone while I was playing candy crush!