A mixdown is the process of combining multiple audio tracks into one stereo track in the recording studio. It is an important step in the post-production of music, films, TV shows and other audio projects.
The goal of a mixdown is to adjust the volume of each track so that they work together seamlessly, creating a homogeneous soundscape and enhancing the overall listening experience.
This process is done with a mixer, a digital audio workstation (DAW) or a combination of both. The mixer adjusts the volume levels, pan settings, EQs, compression and other effects of each track to create a balance between all elements.
The mixdown process also includes creating a stereo or surround sound mix, adjusting the balance and positioning of the sounds in the stereo or surround sound field to create a sense of space and depth.
Once the mixdown is complete, the final mix can be mastered, which is the process of preparing the audio for distribution or release.
Good preparation and clear agreements help in any case to achieve a professional sound. It is also important to take the time a song or an album needs to be released for eternity in this "digital" world.