
I'm Nineworld — a professional audio engineer and creative artist with 15+ years of experience between Paris, New York, and La Réunion. I’ve worked in legendary studios like Quad Recording Studios (NYC) and Plus XXX (Paris), recording and mixing for artists such as Busta Rhymes, The Game, Nippes Hussle, Phoenix, Don Omar, DJ Mehdi, Cassius etc.
My goal is to bring a unique combination of technical precision and artistic sensibility, shaped by years in both the underground and professional scenes...
My approach is tailored, musical, and always driven by emotion and authenticity.
Why work with me?
* 15+ years of international studio experience
* A real ear for groove, clarity and vibe
* Passion for storytelling through sound no templates, no shortcuts
* Artist-to-artist communication, clear and honest
What you'll get:
* A balanced, warm and powerful mix & master
* Analog treatment, dynamic automation, emotional impact
* Clean vocal edits if needed (timing, tuning)
* Clear communication and a collaborative workflow
* Fast turnaround (48h express option available)
Feel free to message me to tell me about your project !
Click the 'Contact' above to get in touch. Looking forward to hearing from you.
Credits
AllMusic verified credits for Sebastien PlassaisDiscogs verified credits for Sebastien PlassaisInterview with Sebastien "Nineworld" Plassais
Q: Tell us about a project you worked on you are especially proud of and why. What was your role?
A: Very proud of my latest project called NEXT LEVEL, it's an international program that welcomes artists from all over the world who work together on an album project. I got the chance to be invited and represented France during the 2 weeks project in Washington DC and NYC. I got to write, record, produce and mix half of the album project with artists from Zimbabwe, Nigeria, Costa Rica, China, Korea.
Q: What are you working on at the moment?
A: working on various projects, including hybrid Hip Hop & Jazz project, composition for dance shows and mixing documentaries
Q: Is there anyone on SoundBetter you know and would recommend to your clients?
A: Lucius Page
Q: Analog or digital and why?
A: Both ! A balanced, warm and powerful mix & master could need analog and digital... It's all about the record, and the artist...
Q: What's your 'promise' to your clients?
A: I bring a unique combination of technical precision and artistic sensibility, shaped by years in both the underground and professional scenes. My approach is tailored, musical, and always driven by emotion and authenticity.
Q: What do you like most about your job?
A: The fact that I get to discover new universes with each projects.
Q: What questions do customers most commonly ask you? What's your answer?
A: What do you think of the recordings ? I most of the time give them tips to avoid certain issues on their next rrecordings: like : treat your room, avoid glass near your mic etc...
Q: What's the biggest misconception about what you do?
A: That I can understand what a client wants just by listening to a demo.... Exchange is necessary, I have worked with the top engineers in this game and even them without a proper conversation or exchange can go wrong when mixing a record... Every artist is different and our work is to make sure we help to shape their vision not ours...
Q: What questions do you ask prospective clients?
A: How can I help you to shape the sound of your vision ?
Q: What advice do you have for a customer looking to hire a provider like you?
A: * 15+ years of international studio experience * High-end gear, analog warmth, and a clean acoustic space * A real ear for groove, clarity and vibe * Passion for storytelling through sound — no templates, no shortcuts * Artist-to-artist communication, clear and honest
Q: If you were on a desert island and could take just 5 pieces of gear, what would they be?
A: - Martin Kantola's Nordic Audio Labs NU-24K microphone - Macbook Pro - Apollo Twin - Pair of Focal speakers - Pair of Headphones
Q: What was your career path? How long have you been doing this?
A: I started back in 2006 in Paris studios: Belleville and then Plus XXX. There I met legendary people like Cassius, Phoenix, Mafia K1 Fry, DJ Mehdi and many others who gave me knowledge and the strength to pursue my carreer further to the USA which was my dream as a child. I then moved to NYC where I started working at the legendary Quad Studios.
Q: How would you describe your style?
A: My style is hybrid, a mix of my experiences, my life path, my cultural upbringing
Q: Which artist would you like to work with and why?
A: Dr. Dre because of his mastery at making timeless records that shaped the sonic of the music I grew up on. And Kendrick Lamar (again ! ah ah ) Because he is a guardian of Hip Hop culture.
Q: Tell us about your studio setup.
A: I work out of two different studio rooms: smaller setup and the big room with the Neve Black Genesys, Apple MAC M4 Pro, Univeral Audio Interface and plugins, FOCAL, Yamaha & Avantone monitors, Telefunken, Neumann, Beyer Dynamic, AKG, Blue, Warm Audio, Midas, Bolling Designs etc.
Q: What other musicians or music production professionals inspire you?
A: Kendrick Lamar, Dr. Dre, Timbaland, Pharrell Williams, Imagine Dragons, Jay-Z,
Q: Describe the most common type of work you do for your clients.
A: Producing, Editing, Recording, Mixing and Mastering
Q: Can you share one music production tip?
A: Duplicate your sample track. filter the low end on your first track and keep it as your main part. Now on the second track of your sample, you can now do the opposite and cut off all the top so you can only keep the bass part of your sample. (Now adjust to taste along composition) or try to solo the bass sample track to make a special effect during your song.
Q: What type of music do you usually work on?
A: Hip Hop, Pop, Rock, Electronic, Soul, Reggae,
Q: What's your strongest skill?
A: I know how to use my tools to technically translate someone's idea into a record.
Q: What do you bring to a song?
A: I bring life to the client's vision.
Q: What's your typical work process?
A: Conversation with client about the project and its direction, files sent over internet. Mixing and send files back to producers, labels and or artists.


- Recording StudioAverage price - $400 per day
- Mixing EngineerAverage price - $150 per song
- Beat MakerAverage price - $150 per song
- ProducerAverage price - $150 per song
- Vocal TuningAverage price - $50 per track
- Mastering EngineerAverage price - $50 per song
- Pro Tools
- Universal Audio Interface
- Logic Pro X
- Warm Audio
- Blue Audio
- Neve
- Telefunken
- Native Instruments Maschine
- Omnisphere
- Yamaha NS10
- Samples banks