Audio-Visual Interfaces are systems that combine sound and visual elements to enhance user interaction. These interfaces can include features like video displays, animations, and sound effects, making them more engaging and intuitive. They are commonly used in applications such as video games, educational software, and multimedia presentations. These interfaces help users process information more effectively by appealing to multiple senses. For example, a video game might use background music and visual effects to create an immersive experience. Similarly, educational tools often incorporate audio-visual elements to facilitate learning and retention of information.