Mixing vs Mastering: What's the Difference and How to Do It at Home

Mixing is taking every track in a song (drums, bass, guitars, vocals) and setting its level, position and tone so they all come together in one stereo file. Mastering is the final pass on that finished mix to get it ready for release. Put simply, mixing works on the inside of the song, mastering works on the song as a whole.

Your band tracked the song at rehearsal, everyone added their parts at home, and now there are twenty-odd files in a folder. The first rough mix lands in the group chat: "Can't hear the bass at all", "Vocals are way too loud", "Why is this quieter than everything else on my playlist?" The first two are mixing problems. The last one is a mastering problem. Knowing which is which tells you who needs to fix what.

What's the difference between mixing and mastering?

Both shape the sound, but they work with different material. Mixing uses separate tracks, mastering uses one stereo file. By the mastering stage you can't just turn the vocal up on its own, because it's baked into the same file as everything else.

	Mixing	Mastering
Works with	Separate tracks (every instrument, every mic)	The finished stereo mix
Goal	Balance the tracks against each other	Make the song translate everywhere it's played
Typical jobs	Levels, panning, EQ, compression, reverb	Overall EQ, limiting, loudness, consistency across songs
The question	"Where does the bass sit?"	"How does this sound on a phone and in the car?"
Order	First	After the mix is done
Who does it	Often the band or a mix engineer	Ideally someone with fresh ears who didn't mix it

What are the basic steps of mixing at home?

Every song is different, but the basic order stays pretty much the same. Sticking to it stops you from trying to fix a problem with the wrong tool.

1. Gain staging: Bring each track to a sensible level, not clipping and not buried. If you set your input levels well on the interface while recording, this is quick. Everything after this builds on it.
2. Balance: Build a rough mix with just the faders. Before you open a single plugin, most of the song should already sit here. In most band recordings, drums and bass are the foundation and the vocal is the focus.
3. Panning: Place tracks left and right in the stereo field. Kick, bass and lead vocal usually stay in the middle. Two guitars? Push one left and one right and they both get room to breathe.
4. EQ: Clean up frequencies. Cut before you boost. If the bass and kick fight over the same low end, take a little out of one. Rolling the low end off guitars opens a mix up fast.
5. Compression: Narrows the gap between the loudest and quietest moments of a track. It's what stops the vocal from disappearing on some words and shouting on others. A little is invisible, too much makes things sound squashed.
6. Reverb and delay: Add space. Instead of putting a reverb on every track, set up one shared reverb and send tracks to it, so it sounds like everyone's playing in the same room.
7. Automation: Draw in level changes over the song. Nudge the guitar up for the solo, push the vocal a touch in the chorus.

Your ears need looking after during a mix too. Long sessions at high volume wear them out and make decisions harder, since loud playback makes everything sound fuller than it is. Mix at a moderate or low level, take regular breaks, and check your mix against a song you like in a similar style (a reference track). Comparing the bass, the vocal and the overall brightness to a reference is the quickest answer to "something's missing, but what?"

What changes when you're mixing a full band recording?

A solo home recording might have four or five tracks. A full band session easily goes past twenty, with several mics on the drums alone. So getting organised is the first job of the mix.

• Name and colour everything: "Guitar Left", not "Audio 14". Drums in one colour, vocals in another, and you'll find anything in seconds.
• Use buses: Send all the drum tracks to one bus so you can ride the whole kit with a single fader.
• Accept the bleed: If you played together in one room, the guitar is in the drum mics too. Big changes on one track affect the others, so move in small steps.
• Check phase: If two mics caught the same source (snare top and bottom, for example), listen to them together. If the sound gets thin and weak, try flipping the phase on one.
• One person at the desk: Five people saying "I can't hear myself" is a loop that never ends. Let one person mix and have everyone else put their notes in one list.

What does mastering actually do?

Mastering finishes the mix with small but important moves. It evens out the overall tone with gentle EQ, sets the loudness with a limiter and keeps peaks from causing distortion. If there's more than one song, it makes them sound like they belong on the same record: matching loudness, similar tone, the right running order and the gaps between tracks.

Streaming platforms play a part too. Spotify, for instance, normalises playback to around -14 LUFS by default and recommends keeping a master's true peak below -1 dB. So pushing a song as loud as possible doesn't always pay off. A heavily squashed master can end up sounding flatter than the tracks around it once the platform turns it down.

Can you master at home?

Yes, especially for demos, rehearsal recordings or something you're posting online. Most DAWs include a limiter and a basic EQ. The most useful thing you can do is pick a reference track and compare yours to it at the same volume. Listening on different systems helps too: phone speaker, car, earbuds.

A few things matter when you prepare a mix for mastering. Don't slap a limiter on the mix bus and push it as loud as it goes, leave some headroom at the peaks. Export a WAV at the bit depth you recorded in rather than an MP3, and don't trim the silence at the start and end. That way, whoever does the mastering has a clean file to work with.

The real limit of home mastering isn't gear, it's ears. After weeks with a mix, you stop hearing its problems. If you're mastering your own mix, leave at least a day between the two.

When should you hand it off to someone else?

Working with a mix or mastering engineer usually pays you back in time and effort when:

• You're releasing the song on streaming platforms and aren't sure about the result.
• The band has been going back and forth on the mix for weeks.
• Something's wrong with the recording and you can't find what (hum, phase, room sound).
• You're putting together an EP or an album with several songs.

Before you hand it over, export every track as a separate file (a stem) starting from the same point, leave the effects off, and include the song's tempo. Well-prepared files usually mean a better result in less time.

If you haven't set up the recording side yet, start with how to set up a home studio and choosing an audio interface. For which software to mix in, see what is a DAW.