Buggy Surround Audio

My 5.1 audio system is connected with analog outputs on MSI z97 gaming 3 motherboard. Center sound and voice is very low and the audio in general sounds weird in 5.1 mode set to realtek audio software. Once set to stereo in the driver software the game sounds become fine. Please fix 5.1 output,
My system is just fine checked with other games and movies.
Edit: when i move my camera and a character speaking in the game moves to the right and then back right the audio slowly fades away. Also when I center the camera to the character who is speaking, the voice cuts off again.