Shelving EQ refers to the practice of adjusting the equalization (EQ) settings on audio equipment to enhance sound quality. This process involves boosting or cutting specific frequency ranges to achieve a balanced audio output. By shelving certain frequencies, such as bass or treble, sound engineers can create a more pleasing listening experience. In audio production, shelving EQ is commonly used in mixing and mastering to control the tonal balance of a track. It allows for a smoother transition between frequency ranges, making it easier to highlight or suppress certain elements in a mix, such as vocals or instruments like guitars and drums.