
Hi, I'm Fran Mastro. Mixing Engineer specialized in R&B, Soul and Hip-Hop. I focus on three core pillars: weight, clarity, and texture. I deliver solid low-end and forward vocals with a 100% ITB workflow. My studio features Audeze LCD-X calibrated with SoundID Reference. Let's talk about your project.
Background
I am Fran Mastro, a certified Sound Technician based in Rosario, Argentina. My experience in the Urban scene includes projects ranging from vocal recording to mixing and mastering. Major projects in my career are the albums "Buscando la Paz" by Nicolás Grego and "street codes" by "Nicote og".
Genre Focus
My work is currently focused on R&B and Neo-Soul, where I prioritize the balance between organic warmth and modern clarity. A recent example is the track "Melancholic Hills," which I co-produced and mixed with artist Agus Perez.
Professional Experience
For the past three years, I have co-operated an audiovisual production company, providing sound design and audio post-production for advertising campaigns. This professional environment has defined my workflow and my management of delivery deadlines.
Technical Setup
I mix 100% ITB using a calibrated monitoring system to ensure accuracy. My studio features Audeze LCD-X headphones calibrated with SoundID Reference software, complemented by Adam T5V monitors and Beyerdynamic DT 770 Pro headphones. My processing relies on industry-standard tools from Universal Audio, Plugin Alliance, and Brainworx.
Contact me through the green button above and let's get to work.
Languages
- English
- Spanish
Interview with Fran Mastro
Q: Tell us about a project you worked on you are especially proud of and why. What was your role?
A: I am very proud of the album "Buscando la Paz" by Nicolás Grego. I was the mixing and mastering engineer. It was a challenge to balance organic elements with modern urban impact, and the final result perfectly captured the artist's growth.
Q: What are you working on at the moment?
A: I am currently mixing a Neo-Soul EP for a local artist and producing several R&B singles focused on rich vocal textures and deep low-end.
Q: Is there anyone on SoundBetter you know and would recommend to your clients?
A: I've seen many talented engineers here, but I always recommend looking for professionals who specialize in your specific genre to ensure the best artistic fit.
Q: Analog or digital and why?
A: 100% Digital (ITB). Modern plugins offer incredible precision and total recall, allowing me to provide fast, unlimited revisions without sacrificing the organic warmth and character of analog gear.
Q: What's your 'promise' to your clients?
A: I promise a professional, competitive sound that respects your artistic intent. I will work on your song with the same dedication as if it were my own until you are completely happy with it.
Q: What do you like most about your job?
A: I love the moment when a track gains its professional "weight" and "texture." Helping an artist see their vision come to life with professional clarity is the most rewarding part of the process.
Q: What questions do customers most commonly ask you? What's your answer?
A: They usually ask about my turnaround time and revision policy. My answer is that I provide a first mix within 24 hours and offer unlimited revisions until they are 100% satisfied with the result.
Q: What's the biggest misconception about what you do?
A: That mixing is just "fixing" audio. In reality, it's a creative stage where we define the depth, emotion, and professional character of the music through technical precision.
Q: What questions do you ask prospective clients?
A: What is the main emotional intent of the track? What are your top three reference songs for this project? Are there any specific vocal textures or "low-end" styles you want me to achieve?
Q: What advice do you have for a customer looking to hire a provider like you?
A: Look for someone who prioritizes your artistic vision. Always provide clear references and open communication to ensure the final mix captures the "vibe" and "soul" you intended for your song.
Q: If you were on a desert island and could take just 5 pieces of gear, what would they be?
A: My MacBook Pro, Audeze LCD-X headphones (calibrated), Universal Audio Apollo interface, Shure SM7B, and a MIDI keyboard.
Q: What was your career path? How long have you been doing this?
A: I am a certified Sound Technician from Rosario, Argentina. I’ve spent the last 3 years co-operating an audiovisual production company, which sharpened my workflow and deadline management in the professional urban scene.
Q: How would you describe your style?
A: Professional, punchy, and clear. I aim for a modern "forward" sound while maintaining the warmth and soul essential to R&B and Urban genres.
Q: Which artist would you like to work with and why?
A: I would love to work with Anderson .Paak. His ability to blend organic musicianship with modern grooves is a huge inspiration for my own approach to mixing and production.
Q: Can you share one music production tip?
A: Prioritize the vocal performance and the low-end balance. If the kick and bass work together and the vocal is clear and forward, the song will sound professional regardless of the complexity of the arrangement.
Q: What type of music do you usually work on?
A: I mainly work on R&B, Soul, Hip-Hop, and Urban Pop. I feel most comfortable with genres that require a balance between organic grooves and modern, punchy production.
Q: What's your strongest skill?
A: My strongest skill is vocal mixing and processing. I specialize in making vocals sit perfectly in the mix, achieving that modern, forward sound typical of R&B and Hip-Hop.
Q: What do you bring to a song?
A: I bring weight, clarity, and professional texture. My goal is to enhance the emotional impact of the track while ensuring it sounds competitive and polished for all streaming platforms.
Q: What's your typical work process?
A: I start with a consultation to understand the artist's vision. Then, I organize the session for a 100% ITB workflow, focusing first on the low-end and vocal clarity. I provide constant updates and offer unlimited revisions to ensure the final result exceeds expectations.
Q: Tell us about your studio setup.
A: I work 100% ITB for maximum flexibility. My monitoring chain is highly accurate, featuring Audeze LCD-X headphones calibrated with SoundID Reference, Adam T5V monitors, and high-end processing from Universal Audio and Brainworx.
Q: What other musicians or music production professionals inspire you?
A: I am deeply inspired by the sonic aesthetic of MixedByAli, Jaycen Joshua, and the organic soulfulness of artists like Anderson .Paak and D'Angelo.
Q: Describe the most common type of work you do for your clients.
A: I specialize in vocal production and mixing for R&B, Soul, and Hip-Hop. My typical workflow involves taking raw recordings and turning them into polished, radio-ready tracks with a focus on punchy low-end and crystal-clear vocals.
- Mixing EngineerAverage price - $50 per song
- ProducerAverage price - $50 per song
- Mastering EngineerAverage price - $30 per song
- Programmed drumAverage price - $25 per song
- Keyboards - SynthAverage price - $200 per song
Unlimited revisions until you're 100% satisfied. Final delivery upon approval. Send 24-bit WAV stems. Delivery time: 24 hours (subject to requested changes).
- Anderson .Paak
- Kendrick Lamar
- D'Angelo
- Pro tools
- Ableton live
- Audeze LCD-X (SoundID Calibrated)
- Universal Audio
- Plugin Alliance
- Brainworx
Free consultation, free mastering sample, and 10% off your first project.



