Individual tracks are blended to sit well together. Relative volume, stereo panning, and other aspects are considered, with a focus on the artistic intent.

Gentle adjustments are made to the overall frequency spectrum and dynamic range, and loudness is brought up to a level that is appropriate to the material and listeners' expectations.

Audio tracks are cleaned and prepped for mixing (or delivery). Potential areas of concern are clicks, electrical hum, and uneven levels.