First noticed it playing GT racing 2 but as far as I can tell it's not to do with the app specifically. Other people have claimed that 4.4.1 has fixed it but I'm on 4.4.2.
Also seen people saying turning off noise cancellation may help too but I would have thought that was more for headphones and couldn't find any settings for it when I checked anyway.
Anyone got any suggestions of things to try? The only thing I could really conclude from what I found was that it was indeed a software issue rather than hardware so hopefully there might be a fix. Or maybe I just need to turn the volume up and be done with it.