I've noticed this whine over the past few days and today it seems louder. I've taken a recording:
https://www.dropbox.com/s/wmvcrhg1ka4x6md/Voice 001.m4a?dl=0
Any idea what it could be?
https://www.dropbox.com/s/wmvcrhg1ka4x6md/Voice 001.m4a?dl=0
Any idea what it could be?