Download Realtek High Definition Audio 2.76 - Latest Version
Realtek HD Audio Drivers is a tool that allows you to listen to audio in HD on your PC.they are compliant with Microsoft's UAA (Universal Audio Architecture). The top series provide 10 DAC channels that simultaneously support 7.1 sound playback, plus 2 channels of independent stereo sound output (multiple streaming) through the front panel stereo output. Flexible mixing, mute, and fine gain control functions provide a complete integrated audio solution for home entertainment PCs.Realtek HD Audio Drivers can be centrally managed from your Windows Device Manager. To access your Windows Vista or 7 Device Manager, click on the Start button that accesses the Start Menu. Type "device manager" into the Start Search box and press enter. That should initiate the Device Manager where you can access the Realtek HD Audio Drivers program.
for windows 32-bit
for windows 64-bit