I bought an LG C1 last year and I've been happy with it. Though about a week ago I noticed some buzzing in the speakers, specifically when someone was talking. I did a little investigating and found that I should play a swept sine wave test. Once I did that, I found the buzzing to be the worst between 200 and 300 Hz. I decided to do more digging and lo and behold the human voice ranges from 125 Hz (males) to 300 Hz (children). My question is, is this an indication that the speakers are broken or is there something I can do to fix it?