Mixing vs Mastering: What's the Difference?
They're often sold together and mentioned in the same breath, but mixing and mastering are two different jobs. Knowing which one your track needs saves time and money.
Mixing: balancing the parts
Mixing works with every individual track in your session: kick, bass, vocals, synths, effects. It sets their levels, places them left to right and front to back, shapes their tone with EQ and compression, and adds space with reverb and delay. The goal is a balanced stereo mix where every part has its place.
Mastering: finishing the whole
Mastering starts where mixing ends. It works on the finished stereo mix as one piece: final tonal balance, loudness, translation across systems, and delivery formats. More on what mastering does.
A simple way to tell them apart
| Mixing | Mastering | |
|---|---|---|
| Works on | Every individual track | The finished stereo mix |
| Fixes | Balance between parts | Overall tone and loudness |
| Can change the vocal level | Yes | No |
| Delivers | A stereo mix, plus stems | Release ready files |
Which one do you need?
- If parts of your track fight each other or something is clearly too loud or quiet: mixing.
- If the balance is right but the track sounds quiet, dull, or different on other speakers: mastering.
- If it's mostly right but one or two elements need adjusting: stem mastering can be the middle ground.
Should one person do both?
It can work well, because the master starts from a mix the engineer already knows. A separate mastering engineer brings fresh ears instead. Both approaches are valid; what matters is that someone is listening carefully at each stage.