This problem only happens when I record video. Not voice memos and it only recently started happening, maybe 6-7 months ago. That is a LOT of audio editing post filming. It is clearly switching mics as the sound is loud then soft then loud with zero consistancy. I have tried covering the mic(s) and it still doesn’t work properly. At $1000 a phone, I am not willing to run out and purchase a new one when it seems it was an update that caused this to start occurring. It seems the giant has found another way to force users to buy new products. Also, I am a lefty. Read some stuff on that but I don’t think that has anything to do with it. ??