This is why an audio driver is essential as your computer will not be able to recognize a speaker on its own. It also involves the sound car into facilitating the process of sending audio from your computer to the speaker. Realtek HD Audio Drivers forms a part of your computer’s central operating system as it receives the signals from a program - like a web browser or media player - and formats it to a code that a speaker can understand. This opens up opportunities for running programs without needing specific parts. Advanced users can also use this program to write programs that interact with the driver without affecting any hardware. It can either be Windows Vista, Windows 7, Windows 8, or Windows 10. It is important to have a 64-bit version of a Windows operating system installed in your computer before downloading Realtek HD Audio Drivers 圆4. This will enable your computer to communicate with audio devices such as speakers and sound cards. Realtek HD Audio Drivers is a software package for Realtek High Definition audio codec.