If you've ever released music, you've heard the terms. Mixing. Mastering. Often quoted as a package, rarely explained. They are two separate crafts, and knowing the difference protects your budget and your sound.

The short version: mixing blends your individual recorded tracks into one balanced stereo song. Mastering takes that finished stereo song and prepares it for release, so it sounds consistent and competitive on every system. Mixing happens first. Mastering happens last. Neither can fix what the other got wrong.

That last line is where most independent artists burn money. They pay for a cheap mix, hope mastering will rescue it, then wonder why the "professional master" still sounds muddy. So this is what you're paying for at each stage, what to ask for, and how to tell if you got your money's worth.

Mixing: balancing the parts

Mixing takes every individual track (vocals, drums, bass, synths) and blends them into one song. The engineer sets levels, carves out space so nothing fights, places each element in the stereo field and shapes how the song rises and falls.

In practice, a mix engineer makes hundreds of small decisions. Does the kick own the low end, or does the bass? How far forward does the vocal sit? Do the guitars live hard left and right, or tucked in closer? What gets wider when the chorus lands, so the listener feels the lift?

The main tools are simple to name and hard to use well:

  • Levels (volume balance). The foundation. Get this wrong and no plugin will save it.
  • EQ (equalisation). Cutting and boosting frequencies so each instrument has its own lane.
  • Compression. Narrowing the gap between the quiet and loud moments of a performance so it sits steady in the song.
  • Panning. Placing sounds left, right or centre to build width and separation.
  • Space and effects. Reverb and delay for depth, saturation for character.
  • Automation. Changing any of the above over time, so the vocal rides up on a key line or the drums open up in the bridge.
A great mix is invisible. You don't notice it, you just feel the song the way it was meant to feel.

Mastering: the final polish

Mastering takes the finished stereo mix and gets it ready for the world. It's the last quality check. The engineer tightens the overall tone and sets the loudness without crushing the dynamics, then confirms the track holds up everywhere from AirPods to a club system.

The big difference is that a mastering engineer usually works on one stereo file, not dozens of separate tracks. They can't turn the snare down 2 dB or pull the vocal forward. Every move affects the whole song at once. That's why mastering is subtle by nature: a small shift in overall tone, a touch of compression, careful limiting to set the final level.

Mastering also covers the unglamorous release work:

  • Consistency across a project. On an EP or album, every track should feel like it belongs to the same record, matched closely enough that nobody reaches for the volume knob between songs.
  • Sequencing and spacing. The order of the songs and the gaps between them.
  • Delivery formats. The right files for streaming, download, vinyl or CD. Each has its own technical requirements.
  • Metadata. Details like the ISRC, the code that permanently identifies each recording, so your plays can be matched back to you.
  • A fresh set of ears. Often the most valuable part. A mastering engineer hears your song for the first time, in a treated room, with none of the baggage you've built up over months of listening.

Why mastering can't fix a bad mix

This is the myth that costs artists the most. Mastering is not a repair shop. The engineer is working on the whole song as one file, so any fix they make lands on everything.

Say the vocal is buried. The mastering engineer boosts the frequencies where the voice lives. Now the vocal is a little clearer, but so are the guitars and cymbals sitting in the same range, somewhere around 3 kHz. The song gets harsher and the vocal is still buried relative to everything else. In the mix, that was a level change that takes thirty seconds.

The same goes for boomy bass, a kick that vanishes on an iPhone speaker, or a reverb tail that turns the chorus into soup. These are mix problems. A good mastering engineer will tell you so and send it back. A cheap one will just make it louder, which makes every problem louder too.

So put your budget into the mix first. In our view a great mix with a decent master beats a mediocre mix with a world-class master.

Why you need both

Mixing makes the song work. Mastering makes it compete. Skip either and listeners feel it even if they can't name it.

Skip the mix, or do it badly, and the song never hangs together. The parts fight. The hook doesn't land. Skip mastering and the song might sound great in your studio but thin and quiet next to everything else on a playlist, with tonal problems that only show up in the car. Listeners don't sit there thinking "the low mids are cluttered." They just skip. For the full picture of what separates a finished release from a demo, we broke it down in what actually makes a track radio-ready.

The loudness trap most artists fall into

For years the goal was to be louder than everyone else. Masters got pushed so hard that the life was squeezed out of them. Drums lost their punch and choruses stopped lifting, until the whole song was one flat wall of sound.

Streaming changed the rules. Services now normalise loudness, which means they bring tracks to a common playback level so listeners aren't riding the volume between songs. Spotify adjusts tracks to -14 LUFS by default and applies negative gain to louder masters. Push your master too hard and the platform turns it down. You keep all the damage from over-compression and lose the advantage you were chasing.

The smarter goal now is a master that sounds full and punchy at a normal level, with enough dynamic range left that the song still breathes. Ask your mastering engineer how they approach loudness for streaming. If the only answer is "we make it as loud as possible," keep looking.

Make my release sound finished →

What you're actually paying for

Mixing and mastering rates vary wildly, from bargain online services to top-tier engineers. Don't fixate on the price. Look at what the price includes. These five things separate a good deal from a false economy:

  1. The ears and the room. You're paying for years of trained listening and a treated space with accurate monitoring. No plugin sells you that.
  2. Time per song. A proper mix takes hours of focused work. If someone is turning around full mixes in minutes, you are getting a preset.
  3. Revisions. Ask how many rounds are included and what counts as a revision. Two or three rounds of notes is a reasonable expectation for a mix.
  4. Stems and deliverables. Will you get an instrumental and a clean version? What about stems (grouped audio of drums, bass, vocals and so on) for sync licensing or live shows? Stems are far cheaper to export now than to recreate later.
  5. Communication. The best engineers ask for reference tracks and talk through your vision before they touch a fader.

Mixing typically costs more than mastering because it takes much longer. That's normal. Be wary of any package where the mixing is suspiciously cheap and mastering is the headline feature. It usually means the hard part is being rushed.

How to prepare your session so you don't waste money

Half of a great mix is what you hand over. Engineers bill for time, and an hour spent untangling a messy session is an hour not spent on your song. Before you send anything off:

  1. Export every track from the same start point. Each file should start at bar one, even if the instrument doesn't come in until the second chorus. Then everything lines up when it's imported.
  2. Name your files clearly. "Lead Vox," "Kick In," "Bass DI." Not "Audio 14 final final."
  3. Leave headroom. Check that nothing is clipping into the red. A quiet, clean file beats a loud, distorted one.
  4. Tell them what's intentional. If that crunchy distorted vocal is the sound, say so, or it might get cleaned up.
  5. Send two or three reference tracks. Songs in your genre that sound the way you want yours to feel. Nothing gets you on the same page faster.
  6. Include your rough mix. Even a messy demo balance shows the engineer what you've been hearing in your head.

For the master, send a mix with no limiter on the master bus (or send both versions) and some breathing room in level. The mastering engineer needs that headroom to work with.

A worked example: one single, two paths

Say you're an independent artist in Melbourne with a single ready to go and a fixed budget for post-production.

Path one: you mix it yourself in Logic over a weekend, then spend the whole budget on a well-known mastering engineer. The master comes back louder and shinier. But your vocal still sits behind the guitars, and the bass swallows the kick on small speakers. The engineer did what they could with one stereo file. You release it anyway, and it sounds a notch below everything around it on a playlist.

Path two: you split the budget, most of it to a proper mix engineer and the rest to mastering. You send clean, labelled tracks with two reference songs and your rough mix. After 2 revision rounds the vocal is clear, the low end is tight and the chorus lifts. Mastering then has a solid song to polish, and the job is quick and subtle. Same budget, completely different result.

The amount of money never changed. The order you spent it in did.

How to judge whether your mix and master are done

You don't need golden ears to check the work. You need a routine. Listen to the final master on:

  • Cheap earbuds. Can you still hear the bass line and the vocal clearly?
  • Your phone speaker. Does the song still make sense with almost no low end?
  • The car. The classic test, and where plenty of your listeners will hear it.
  • Good headphones. Are there clicks, harsh sibilance or odd noises you missed?
  • Next to your reference tracks. Match the volume by ear and switch back and forth. Does yours hold up?

If it translates across all five, you're in good shape. If something jumps out, note the timestamp and which system you heard it on. "The vocal at 1:12 disappears on the phone" is useful. "It needs more vibe" is not.

This isn't only for musicians. Podcasts and ad soundtracks go through the same two stages. If you run a show, why your podcast sounds amateur covers the spoken-word version of these fixes. And if you're building an audio identity for a business, sonic branding only works when the sound itself is finished to this standard.

Getting it done properly

Your song is only heard for the first time once. That first listen, on a playlist or in someone's car, decides whether they come back. A rough mix and a rushed master make that moment harder than it has to be.

We handle both stages with the same care, so your release sounds professional on every system it touches. Our music and sound team mixes and masters for artists, brands and creators who want their work to stand up next to anything else out there. If you've got a track that's almost there, tell us about it.

Frequently asked questions

What is the difference between mixing and mastering in simple terms?

Mixing blends all the separate recorded parts of a song, vocals and drums included, into one balanced stereo track. Mastering takes that single finished track and polishes it for release, setting the final tone and level so it sounds consistent on every playback system and alongside other songs. Mixing builds the song. Mastering prepares it to compete.

Can I skip mastering if my mix sounds good?

You can, but it's a risk. Mastering adds a fresh, objective listen in an accurate room. It catches problems you've stopped hearing, sets a sensible loudness for streaming, and takes care of delivery formats and metadata such as the ISRC. A mix that sounds great in your room can still sound thin or harsh elsewhere. For any serious release, mastering is worth the extra cost.

Should the same engineer mix and master my song?

It can work, especially when budget is tight and the engineer is experienced at both. The traditional argument for separating them is fresh ears: a mastering engineer who hasn't lived inside the mix hears it the way a listener will. If one person does both, ask them to take a break between stages so they come back with a clear head.

How long does mixing and mastering take?

It varies by engineer and by song. As a rough guide, allow anywhere from a day to several days for a single mix, plus time for your revision rounds. Mastering is faster, and a turnaround of a day or two per song is common. An EP or album takes longer because every track needs to sit together. Build this time into your release plan before you lock in a date.