Audio restoration is the process of improving the quality of recorded sound by removing unwanted noise and artifacts. This can include eliminating background hiss, clicks, pops, and other distortions that may have occurred during recording or playback. The goal is to enhance the listening experience and preserve the original audio content as much as possible. Techniques used in audio restoration often involve digital tools and software, such as Adobe Audition or iZotope RX. These programs allow audio engineers to analyze and repair recordings, making it possible to restore old music, speeches, or other audio materials to a clearer and more enjoyable state.