Mixing vs. mastering: what is the difference?
Mixing balances individual tracks. Mastering prepares the final stereo file for distribution. Both stages serve a distinct purpose.
Mixing and mastering are two separate stages in music production. Confusing them leads to problems: trying to fix a bad mix in mastering, or applying mastering tools to individual tracks.
What mixing does
Mixing works on the individual tracks and stems of a project. The mixer adjusts volume, panning, EQ, compression, and effects for each element so they sit together in a coherent space.
A good mix is balanced: no element is too loud or too quiet, every instrument has its own frequency space, and the stereo field feels natural.
- Volume automation and fader balance
- EQ to carve frequency space for each element
- Compression to control dynamics within tracks
- Reverb and delay to place elements in a space
- Panning to create stereo width
What mastering does
Mastering works on the final stereo mix export. It prepares the track for distribution: ensuring consistent loudness across streaming platforms, correcting any remaining tonal imbalances, and adding limiting to prevent clipping.
Mastering also ensures the track sounds consistent across different playback systems — earbuds, car speakers, and club sound systems.
- Broad EQ to balance the overall tonal shape
- Multiband compression for glue and punch
- Stereo widening and mid-side processing
- Limiting to hit loudness targets (typically
-14 LUFSfor streaming) - Dithering when reducing bit depth for final export
The key rule
- Remove any limiter from your master bus.
- Export your mix with at least
-6 dBFSof headroom and no clipping. - Send the clean, dynamic mix file to mastering.
Frequently asked questions
Should I mix and master my own music?
You can, but a second set of ears helps. Mixing your own music requires periodic breaks to reset your hearing. Mastering benefits even more from a fresh perspective and a calibrated listening environment.
How loud should my mix be before mastering?
Leave at least <code>-6 dBFS</code> of headroom. Do not put a limiter on your master bus before sending the mix to mastering — the mastering engineer needs dynamic range to work with.
What is LUFS and why does it matter for streaming?
<code>LUFS</code> (Loudness Units Full Scale) measures the perceived loudness of audio. <strong>Spotify</strong> and other streaming platforms normalize tracks to around <code>-14 LUFS</code>. Tracks louder than this get turned down automatically.