Mastering audio engineering for your music.

Made in FRANCE

Audio mastering

A faithful passion for the sound that has driven me for many years after long experience as DJ, podcaster then now as mastering audio engineer.

Aurelien5 year's old
Aurelien Sm'Artas DJ

What I do

Audio Mastering

Audio Mastering

To make the analogy with a painting, mastering is for a song like varnishing to embellish the painter's work. It is the last step to finalize a track as a commercial product for its release on the market.

Podcasts, DJ


Many years of working in audio projects (first as a DJ, then as a podcaster and in mixing) have developed my expertise in sound related processes and mastering techniques.


  • Mastering for Digital
  • Mastering for Vinyl
  • Audio restoration
  • Vinyl digitization (Vinyl to digital)

What's in your mind?


Want to include your company in the list? Contact me

All they say

Your opinion is valuable to me.

Transparency: consult here the public Google reviews published by our customers.

It makes me feel good to make you feel proud.

  • Work neat and listening to the customer, I highly recommend!

    Tevatron - Metrohm Founder - Aix En Provence, France
  • Excellent job of old acid house audio mix restoring, very good job.

    DJ Tuttle - Modulhertz - Nancy, France
  • The master sounds good and tight to me. You can go ahead. - Ken

    Ken Ishii - Techno DJ / Producer - Tokyo, Japan
  • A very clean and neat job!!!

    Franck aka City 2 City - Techno DJ / Producer - Montpellier, France
  • Gentleman has breathed new life into my track with his audiomagic .. Definitely recommended for mastering tracks! .. Aurelien thanks again!

    Phil Hent - Techno DJ / Producer - Monster, Netherlands
  • Very happy with the mastering done for MSTE. Lots of air and nice translucent masters.

    Michiel Stehouwer aka MSTE - Techno Producer - Amsterdam, Netherlands
  • Thanks for the mastering work! Aurelien pick the right elements from my track and enhanced it :-). Very good communication and collaboration

    Gerwin van Engelenburg - Techno DJ / Producer - Veenendaal, Netherlands
  • Top mastering! Very professional, I recommend

    Thibault Le Cleach aka Theobald Ringer - Record Producer - Brest, France

Why choose AC7 Diffusion mastering

1. Quality

Your satisfaction is my commitment. I will know how to flesh out your final mix with a subtle touch that flatters the ear and makes your track sound like a finished product.

2. Open mind

It is practice makes perfect. This is my motto. I am constantly learning on new technic as soon as new projects are coming to me. Thus, I am humbly working in a continuous improvement spirit of my own methods to deliver you the best result.

3. Less is more!

As real sound craftsmen, I am providing a tailor-made mastering service (no preset). Each audio track is a new blank sheet. I will be able to support you objectively by using the proper "mastering pencil" treatment adapted to your music.

4. Handcraft analog mastering

I ensure mastering process of your music in my studio. I operate your mastering through a chain of precision audio gears to elevate your tracks to pro-grade music standard industry by taking care of artistic line identity, the reproduction of the dynamics and by using my best tool: my ears.

5. International coverage

Worldwide mastering service. Easy making contact and smooth communication is ensured by using modern collaborative conferencing tools allowing to deal on your specifications and requirements like reference tracks and your overall expectations.

6. Studio equipements

Monitoring: PSI Audio A21-M + A225-M (Swiss made precision monitors) & Ollo S4X (reference headphone) - Metering: Brainworx BX Meter, Klanghelm VUMT Deluxe - AD/DA converter: Prism Sound Atlas - Equalizers: Brainworx BX Digital V3, Fabfilter Pro-Q3, Coleman Audio CA500M - Switch: Coleman Audio TC4 - Dynamics: Freevox Audio PM-200A, Handsome Audio Zulu, Freevox Audio Sound Warmer, IGS Tubecore 3U Mastering Edition, Rupert Neve Designs Portico II Master Buss Processor, Bettermaker Darthlimiter - Analogue mixing console: Freevox Audio Atlanta Prestige - Vinyl turntables: Technics SL-1200 MKII mounted with Shure M44-7 cartidges.

Contact me