I just got this phone. I didn't notice this problem until I used this phone in a quiet place. When I talk to someone, I hear some random high pitch noise that's similar to symptom of tinnitus. Also, I hear some random squeak/scratch noise, simlar to the ones that you can find from playing scratched CD or MP3 ripped from a scratched CD.
My friend who once had LG phone few yrs ago told me that this is characteristic (bug?) of LG.
Should I get it exchanged or keep it (assuming if same will occur with replacement)?