Audio equalization is the process of adjusting the balance between different frequency components of an audio signal. This is done using an equalizer, a tool that allows users to boost or cut specific frequency ranges, such as bass, midrange, and treble. By modifying these frequencies, audio equalization helps enhance sound quality and tailor audio playback to suit different environments or personal preferences. Equalization is commonly used in various applications, including music production, broadcasting, and live sound reinforcement. It can help correct issues like muddiness in recordings or improve clarity in vocals. Overall, audio equalization plays a crucial role in achieving a balanced and pleasing sound.