
Leo Brum is a graduate audio engineer and music producer. His career began in 2018, driven by his passion for music. As a mixing engineer and editor, Leo has mixed songs for artists in over 20 countries.
Hello! I'm Leonardo, a Professional Audio Engineer specializing in high-quality audio services.
Since 2018, I've been working in the audio production industry, providing mixing, mastering, and music production services to clients from 20+ countries.
Whether you need a professional mix, perfect mastering, or custom audio engineering, I deliver top-tier results tailored to your needs.
Please note: The quality of the final result is directly tied to the quality of the material provided. High-quality stems, recordings, and files lead to a superior outcome.
My services include:
Professional Mixing
Audio Mastering
Custom Music Production
High-Quality Sound Engineering
My setup includes:
Pro Tools Studio
Mac Mini M2 Pro, Tascam US 16x08
Yamaha NS-10M, Soundcraft Absolute 4p
Vintage AKG K240, Beyer Dynamic DT 990 PRO
UAD, Plugin Alliance, SSL Native, FabFilter, Soundtoys and more
Ready to elevate your project? Contact me now and lets make your vision a reality!
Send me a note through the contact button above.
Credits
5 Reviews - 1 Repeat Client
Endorse Leo Brum- check_circleVerified
Leo is so amazing at what he does and works fast to give you the exact outcome you want! Each track is so exciting to work on with him!
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Leo is an absolutely incredible engineer, his attention to sound and detail is immaculate with a quick turnaround time! Can't wait to start our next project together 10/10 would recommend.
I am a session drummer and had the privilege to play on a track that Leo mixed for a client I played for. When I heard the mix he did, I was blown away by the depth and attention to the frequency spectrum. All the instrumentation was present. Vocals sat on top of the mix while the bass provided a warm and rich foundation for all the other instruments to breathe.
I highly recommend Leo to anyone looking for a mixing/mastering engineer. He does stellar work and I have no doubts that you will be blown away with the end product.
He’s an amazing mixer and he knows how to get where you wonder. I can only imagine my songs mixed and mastered by him, now. Such a excellent sound engineering.
Working with Leo was a fantastic experience, it was like he could read my mind just to bring my dreams to life. He worked hard since the beginning of the project until the final version. I'm very grateful to him.
Interview with Leo Brum
Q: How would you describe your style?
A: I’d describe my style as 'in-your-face'—I love creating punchy, impactful sounds that grab your attention. I focus on making sure every element stands out with energy and clarity, ensuring that the track hits hard and connects with the listener from the first note.
Q: Can you share one music production tip?
A: I would say the most important music production tip is to focus on recording quality. No matter how good your mixing skills are, a poor recording will always limit the final result. Taking the time to capture clean, high-quality recordings from the start sets you up for a much easier and more effective mixing process.
Q: What type of music do you usually work on?
A: I usually work on pop and rock music. These genres allow me to blend catchy melodies with powerful instrumentation, which gives me the opportunity to create dynamic, energetic mixes that capture the essence of both styles.
Q: What's your strongest skill?
A: My strongest skill is understanding what the client wants and, when possible, shaping the material they provide to meet their expectations. I’m able to listen closely to their vision and translate it into the sound they’re seeking, ensuring that every element of the mix aligns with their creative goals. This ability to connect with my clients and bring their ideas to life is what truly sets my work apart.
Q: What do you bring to a song?
A: What I bring to a song is emotion. I focus on capturing the feeling and energy of the track, ensuring that every element serves the overall vibe. Whether it’s through dynamic mixing choices or the way I balance the instruments and vocals, my goal is to enhance the emotional impact of the song, allowing listeners to connect with it on a deeper level.
Q: What's your typical work process?
A: My typical work process starts with mixing the foundation of the song, which is usually the beat (drums) and bass. These elements set the groove and drive of the track, so I make sure they’re solid before moving on. Once that’s locked in, I focus on the vocals, adjusting their levels and tone to sit perfectly in the mix. From there, I build the rest of the mix around these core elements. Having a strong, defined center allows me to experiment with the stereo field, making the song as wide, punchy, and deep as possible while maintaining balance and clarity.
Q: Tell us about your studio setup.
A: My studio setup includes a variety of high-quality equipment to ensure professional results. I work with Yamaha NS-10M Studio Monitors for accurate, reliable sound reproduction. For headphones, I use the Vintage AKG K240 and Beyer Dynamic DT990 PRO, which provide great clarity and detail during mixing and editing. My primary DAW is Pro Tools Studio, which I pair with a wide range of plugins from Plugin Alliance, UAD, Sonnox, SoundToys, FabFilter, and IK Multimedia, among others. This combination of tools allows me to deliver top-notch mixes and masterings, providing clients with the highest audio quality possible.
Q: What other musicians or music production professionals inspire you?
A: My main inspirations as an audio engineer are Chris Lord-Alge, Serban Ghenea, Tony Maserati, and Manny Marroquin. Their work has shaped my approach to mixing and mastering, and I draw a lot of influence from their distinct styles and techniques in creating powerful, polished sounds.
Q: Describe the most common type of work you do for your clients.
A: The most common work I do for my clients involves mixing and preparing their tracks for release. In mixing, I balance the different elements of a song, like vocals and instruments, ensuring everything sounds cohesive and clear. After the mix is complete, I typically hire a professional mastering engineer to finalize the track, ensuring it sounds polished and consistent across all platforms and listening environments. My goal is always to bring the client's vision to life with a high-quality, professional sound.
Q: Tell us about a project you worked on you are especially proud of and why. What was your role?
A: I'm especially proud of my work on the 'Amor Sem Igual' soundtrack, where I served as the co-producer, editor, and mastering engineer. The project holds a special place for me because the songs were played worldwide, and seeing them resonate with such a large audience was truly rewarding. Being part of a project that had such a wide reach and impact was an amazing experience, and I’m proud of the role I played in bringing it all together.
Q: Analog or digital and why?
A: Both. Digital gives you the flexibility and precision needed for modern production, while analog provides a unique warmth and character that can really elevate the sound. Combining the best of both worlds lets you have the best of both—flexibility and warmth—and creates a truly beautiful sound.
Q: What's your 'promise' to your clients?
A: My promise to my clients is that I’ll get the most out of their song. I’ll make sure every element is enhanced to its full potential, creating a mix that truly brings their vision to life and makes their track stand out.
Q: What do you like most about your job?
A: "What I enjoy most about my job is the feedback from my clients. Knowing that they’re happy with the final product is incredibly rewarding. It’s also fulfilling to see that I’m able to get the job done in the best possible way, delivering a result that exceeds their expectations.
Q: What's the biggest misconception about what you do?
A: The biggest misconception about what I do is that mixing is simply about tweaking knobs and getting a perfect mix in just a few minutes. There's a lot more detail, time, and thought that goes into it. Another common misconception is that a mixing engineer can work magic and transform a poor-quality recording into a top-tier sound. While I can improve the mix, the foundation of a great track starts with a high-quality recording. Without that, it’s impossible to create a truly professional result.
Q: What questions do you ask prospective clients?
A: When working with prospective clients, I ask a few key questions to ensure I understand their vision. I start by asking about their specific needs and what they’re hoping to achieve with the project. I also inquire about the timeline—how long I have to work on the track—so I can plan accordingly. Lastly, I ask for reference songs or examples of the sound they’re aiming for, which helps me better understand the vibe and direction they want for the project.
Q: What advice do you have for a customer looking to hire a provider like you?
A: My advice for anyone looking to hire a provider like me is to set realistic expectations. You can’t expect a poor-quality recording to sound like a Grammy-winning track—it's just not possible. If you're looking for a premium mixing and mastering service, make sure the recording process has been given the same level of attention and care. A strong, high-quality recording is the foundation for a great mix, and that’s where everything starts.
Q: What was your career path? How long have you been doing this?
A: My journey began in 2009 when I started playing guitar, inspired by Guitar Hero and my dream of becoming a rock star. At 14, I enrolled in a technical school in Rio de Janeiro, where I learned about live audio. My path in mixing and mastering kicked off in 2016 after completing my first production course. In 2018, I pursued a music production degree and, just a few months later, began working at one of the largest studios in Rio. Fast forward to 2025, and I’ve had the privilege of working with producers and artists from over 20 countries.

I was the mixing engineer in this production
- Mixing EngineerAverage price - $250 per song
- EditingContact for pricing
Delivery Time - 7 business days;
Unlimited Stems - 6 revisions;
- Nickelback
- Harry Styles
- Chris Stapleton
- Yamaha NS-10M Studio Monitors
- Vintage AKG K240 Headphone
- Beyer Dynamic DT990 PRO
- Pro Tools Studio
- Plugin Alliance
- UAD
- Sonnox
- SoundToys
- Fabfilter
- IK Multimedia and much more.
20% OFF on the first order