A Graphic EQ, or Graphic Equalizer, is an audio processing tool that allows users to adjust the frequency response of sound. It features multiple sliders, each corresponding to a specific frequency band, enabling precise control over the audio output. This helps in enhancing or reducing certain frequencies to achieve a desired sound quality. Typically used in music production, live sound reinforcement, and broadcasting, a Graphic EQ can improve clarity and balance in audio. By manipulating the sliders, users can tailor the sound to suit different environments or personal preferences, making it a valuable tool for audio engineers and musicians alike.