Audio filters are tools used in sound processing to modify audio signals by removing or enhancing certain frequencies. They can be applied to music, voice recordings, or any sound to improve clarity or achieve a desired effect. Common types of audio filters include low-pass filters, which allow low frequencies to pass while blocking high frequencies, and high-pass filters, which do the opposite. These filters are essential in various applications, from music production to broadcasting. They help in reducing unwanted noise, shaping the sound, and ensuring that audio sounds balanced and professional. Audio filters can be found in digital audio workstations (DAWs) and mixing consoles.