I know there are some similar threads on here but mine is a general question about game sound quality. I have my gaming PC connected to my TV in my living room. I have a 5.1 surround sound system using an Onkyo TX-SR706 receiver with multi channel inputs. For a long time I used my Creative X-Fi XtremeMusic sound card anolog outputs to the multi channel inputs of the Onkyo. Recently I have been using the HDMI of my GTX 760 card for both audio and video through the Onkyo. My question is about whether there is anything special about dedicated sound card technology that would better be able to produce the sound effects in a game than the HDMI audio decoded by the receiver? Is it the game programming itself that decides the positioning of sounds? I never use headphones.