What is Mastering?
Mastering is the process of balancing and adjusting audio, making it sound fuller and giving it a more distinctive tonal character. For a collection of songs or a full record, this also involves creating consistency and balancing levels, dynamics, and equalization among all the tracks, creating fades and crossfades between those tracks, and sequencing and spacing the album.
Mastering isn’t just about making your songs sound louder (though that can be one of the end results). It’s about giving your songs the final polish that makes them sound “like a record” regardless of the sound system used for playback.