Realtek has released new High Definition Audio drivers for Vista and Windows 7. Realtek is a popular onboard sound card found on many brand name computers and motherboards



From MajorGeeks:

Audio drivers available for download from the Realtek website are general drivers for our audio ICs, and may not offer the customizations made by your system/motherboard manufacturer. To be sure you obtain the full features/customizations provided in your original audio product, please download the latest drivers from your system/motherboard manufacturer's website.

  Realtek High Definition Audio for Vista, Windows 7 and Windows 8 2.75