By default, if you chose the normal installation, the ATI driver installer will install those sound drivers. If you are not going to use the sound from your television speakers, then chose the custom install and do not install those sound drivers.
They do introduce conflicts, especially when the video card and sound chip use the same interrupt. Some of the typical problems are frame rate stutters, clicks and/or static in the sound, occasional stability problems, and even network packet loss can be attributed to those drivers.
Does it all happen in every computer? No. The trigger for most of it seems to be how the interrupts are being shared.