Dolby Digital is a popular audio technology that enhances sound quality in movies, TV shows, and music. It creates a surround sound experience by using multiple audio channels, allowing you to hear sounds coming from different directions. This makes watching films and playing video games much more immersive, as you can feel like you're right in the middle of the action. Originally developed by Dolby Laboratories, Dolby Digital supports up to 5.1 channels of audio, which includes five speakers and one subwoofer. This setup provides clear dialogue and rich sound effects, making it a favorite choice for home theaters and cinemas alike.