Mixing in music is the process of optimizing and combining multitrack recordings into a final mono, stereo, or surround sound product). It involves blending individual sounds, also known as stems, and balancing them in levels, making some louder than others. At the same time, a mixing engineer will balance them in terms of panning, placing them in the stereo field: left, center, right, or anywhere in between. Mixing also includes the knowledge of what can be taken out of the mix, such as unwanted noise or redundant instrument parts. Audio mixing techniques and approaches vary widely and have a significant influence on the final product). The process is generally carried out by a mixing engineer, though sometimes the record producer or recording artist may assist). After mixing, a mastering engineer prepares the final product for production). Mixing may be performed on a mixing console or in a digital audio workstation). Mixing is both a technical process and a creative art form, and it has a significant effect on the sonic texture and aesthetic experience of the music.