Having AMD or Intel makes no difference, problem is not isolated. Grow up.
May 9 2016
Similar Issue here.
CPU: AMD Phenom II X6 1100T @ 3.8GHz
RAM: 2x4GB Corsair Vengeance @ 1600MHz
GPU: 2x Radeon HD 6950 2GB in crossfire.
I have a Logitech z906 5.1 surround sound unit. The position of the sounds is accurate for me, but the volume is extremely variable. In some instances, people next to me can shoot and sound like they're 300 meters away, while someone far away will fire and sound like they're next to me. Also, when moving, sound is played through one of the rear speakers (the sound of the player character moving) and it is often mistaken for near enemies.
Can comfirm this. In my case though, it won't go away.
This happens to me as well, but I also have a problem with the rotor not spinning properly while in flight. sometimes it will go in reverse, completely stop, or just be incredibly slow moving.