Audio filtering is a process used to enhance or modify sound signals by removing unwanted frequencies. This technique is commonly applied in various fields, including music production, telecommunications, and broadcasting. By using devices or software known as equalizers or filters, specific frequency ranges can be boosted or attenuated, allowing for clearer and more balanced audio. There are different types of audio filters, such as low-pass, high-pass, band-pass, and notch filters. Each type serves a unique purpose, like allowing only certain frequencies to pass through while blocking others. This helps improve sound quality and ensures that the desired audio elements are more prominent.