Yea it's a bit hit and miss they never fixed it, nor will they admit it. I can garantee you Emilee will say one of 2 things, factory restore it or bring it in for service, when the issue is they have the volume levels so fudged up it isn't funny.
With the latest update, the stock camera app tends to go "silent" on loud things like music or car engines. So I use snap camera, and changed the microphone it was using, and now it works, but now it's so loud it can clip easily.