Quick answer: A mixing engineer takes the recorded tracks of a song and balances, shapes and blends them into a finished mix that serves the music. That means setting levels, using EQ and compression, adding effects and saturation, placing sounds in the stereo field, automating changes, checking the mix on different speakers and revising it with the artist or producer. Mixing is a separate job from recording and from mastering. How much a mixing engineer earns varies widely: it depends on whether you are employed or freelance, on your clients and on your reputation, so there is no single salary. Most people get there through years of repetition and real projects, not one fixed route.
This guide explains the job through real sessions filmed for Puremix, lists the skills that matter, shows how mixers get paid, and maps a realistic path into the career. If you are looking for the step-by-step route, we also have a separate interview with Austin Seltzer: How to Become a Mixing Engineer.
What does a mixing engineer do?
The mixing engineer starts when the recording is finished. The job is to make dozens of tracks work as one record. In the sessions we film with working engineers, the same tasks come up again and again.
1. Balance the song
The first job is to decide what matters most and set levels around it. Rich Keller puts it simply: "No sound is an island." The example is an 808 compressed until it sounds worse on its own but works better with the kick and the rest of the mix, with every change checked with all the tracks playing. See Rich Keller controlling 808s.
2. Shape tone and dynamics
EQ, compression and limiting control tone and consistency. In Limiter vs Compressor | Andrew Scheps, Andrew Scheps explains why a limiter was the better choice than a compressor for a fuzzed-out bass, and why heavy insert compression is usually avoided when an instrument should stay natural.
3. Add character and depth
Saturation, distortion, reverb and delay add size and attitude. Tony Maserati adds light saturation to a lead vocal and automates it up only on the last word of the chorus, as covered in Tony Maserati: Adding Saturation to the Lead Vocal. If you want to learn this side of mixing, start with saturation vs distortion.
4. Fix problems before they become decisions
Phase and polarity problems can quietly weaken a mix. Jacquire King checks that the DI and microphone tracks of a bass are in agreement by flipping polarity and listening for a thinner sound, then checks the polarity of the combined bass so it works with the kick. See Jacquire King on Bass Polarity.
5. Make creative additions
Sometimes the job includes adding parts. Jimmy Douglass doubles a synth bass with a MIDI 808 that goes even lower, comparing the mix with and without it. The result is described as "really nice, warm and welcomed." Read Sub bass w/ Jimmy Douglass.
6. Check translation and deliver
A mix has to work outside the studio. Kick or Bass: Which Should Own the Low End of Your Mix? reminds us that most listeners will never hear 50 Hz, so the low end also needs a presence in the midrange. At the end of an album, Matt Ross-Spang sequences all the final mixes in album order and listens to the whole record in one pass off tape, as described in What Does Mixing Down to Tape Actually Do to Your Record?
Mixing engineer vs recording engineer, producer and mastering engineer
| Role | Main job | When in the process |
|---|---|---|
| Recording engineer | Captures the performances with microphones, preamps and a recorder or DAW | Before mixing |
| Producer | Guides the creative direction, the arrangement and the performances | Throughout, often through mixing |
| Mixing engineer | Blends the recorded tracks into one finished mix | After recording, before mastering |
| Mastering engineer | Prepares the finished mix for release and makes final adjustments across the whole record | After mixing |
One person can do several of these jobs, especially in smaller projects. Brian Lucey, a mastering engineer, describes mastering this way: "Mastering is not a fixing step, it's an enhancing step." See Brian Lucey: Limiting and Saturation.
The skills a mixing engineer needs
- Critical listening. You have to hear small differences in tone, level and space. Our sister site Campus publishes a practical guide, How to Train Your Ears for Mixing, and teaches the skill in the How To Listen course with Fab Dupont.
- Technical knowledge. EQ, compression, gain staging, phase, saturation and metering. Start with gain staging your session and the Campus guide to EQ.
- Speed without rushing. Ben Lindell's habits are a good model: be fast but do not rush, change one thing and keep one thing, and make it sound as good as possible as early as possible. Read Simple Suggestions for Being a Better Engineer.
- Taste and a point of view. Knowing what the song needs, not what you can add.
- Communication. Understanding the artist's goals, taking feedback and handling revisions.
- A good listening room. What you hear is what you mix. See How to Treat a Room for Mixing on a Budget.
How much does a mixing engineer make?
There is no single mixing engineer salary, and published estimates vary widely depending on the source and on which jobs they count, so we do not quote one number here. What decides your income is how you work:
- Employed or freelance. Some engineers work on staff at a studio, a label, a broadcaster or a post-production company. Many mixers work freelance, charging by the project or by the song.
- Your client base. Income follows the number of artists and producers who trust you. Our guide on how to find clients online covers where to find bands, how to write the first email and why positioning matters.
- Reputation and credits. Testimonials, credits and a portfolio that sounds good help you ask for more over time.
- Speed and reliability. Finishing on time and delivering revisions quickly lets you take on more projects.
A realistic path into the career
- Start where you are. Austin Seltzer talks about spending long days in a bedroom producing and learning the craft, and says the city matters less than the hours. The advice: "Putting in the time doing the craft is the mentorship." Read the full interview post above.
- Finish records. Mix complete songs, not only drum sounds or presets. Build taste by finishing and comparing with references.
- Learn from working engineers. Watch real sessions. The free Puremix videos show engineers like Darrell Thorp and Michael Brauer making decisions in real time, and the Puremix plans give you access to the full library.
- Build a portfolio. A few mixes that sound good, with the credits you can show. Make it easy to listen to.
- Find clients. Contact artists directly, build relationships and stay on their radar between projects.
- Go deeper in a structured way. Campus offers courses such as the Brauerize Mixing Method, Foundations of Compression, and the Core Audio Program, the science and art of sound led by Andrew Scheps.
FAQ
What does a mixing engineer do?
A mixing engineer balances and shapes the recorded tracks of a song into one finished mix, using level balance, EQ, compression, effects, panning and automation, and revises it with the artist or producer.
What is the difference between a mixing engineer and a mastering engineer?
The mixing engineer blends the individual tracks of a song. The mastering engineer works on the finished mix, preparing it for release and making final adjustments across a whole record.
Do you need a degree to be a mixing engineer?
There is no single required route. Many engineers learn by doing real projects over many years, as Austin Seltzer describes, and some also study formally. Whatever you choose, the portfolio and the clients are what count.
How much do mixing engineers make?
It varies widely with the type of job, the clients and the reputation of the engineer. Employed engineers have a salary, and freelancers charge by the project or the song. Check the BLS pages for official US statistics.
How do mixing engineers find clients?
Mostly through relationships: direct contact with artists, referrals from producers and a portfolio that people can listen to easily. See how to find clients online.
How long does it take to become a mixing engineer?
There is no fixed timeline. Progress comes from repetition: finishing records, getting feedback and learning from engineers who do it every day.
Ready to learn from the engineers themselves? Watch the free Puremix videos, see the Puremix plans, or take a structured course on Campus.
Disclosure: Campus and Puremix are sister brands. Technical details and examples come from Puremix sessions and posts, checked in November 2026.
