Professional Mastering
Analog mastering.Mastered by ears, not algorithms.
The first listen only happens once.
Analog warmth · Musicality · Precision
Process
How it works
Osmuse mastering is 100% online. As soon as you upload, your files reach us instantly and you get an email confirmation. Our engineers then master your tracks at the studio in Paris with human decisions: real hardware like the WesAudio ngComp and the Bettermaker Bus Compressor, for genuine transistor harmonics, alongside cutting-edge software for precision, then you receive your finished master, wherever you are.
Submit
Send your mix as WAV or AIFF. Tell us the destination, the genre, and the sound you are going for.
Listen
Listen to an excerpt of your master for 4 days. The full master is unlocked after you approve the price, with no card required to discover the result.
Free excerpt for 4 daysApprove
After the trial, a 60-second preview stays free forever. Approve to unlock the full file.
Receive
Download your finished master - high-resolution stereo, ready for distribution.
Submit
Send us your mix
Master destination
Audio file
You'll get a listening link within 3 to 5 business days.
Pricing
Simple & transparent
Our offer
- -Excerpt available for 4 days
- -Full master after approval
- -No card required
- -Feedback and revisions included
What we've mastered
Selected work
Mixing & Recording
Our studios

Studio Yonipal
Inès
◎Paris
Inès works sound from the inside out - every frequency in its place, every silence on purpose. She specializes in lyric-driven music and organic electronic productions.
- Full mixCustom
- Vocal sessionCustom
- ConsultationFree

Studio Couleur de Son
Jérôme
◎Near Amiens, France
A hands-on approach to sound, somewhere between analog warmth and modern precision. Specialized in pop, songwriting and hybrid worlds.
- Full mixCustom
- Vocal sessionCustom
- ConsultationFree
Partners
Trusted by




The team
Two sets of ears, one studio

Studio Yonipal
Inès
Mixing engineer
For Inès, mixing is never just about frequencies, it starts as an encounter. She guides you through your artistic choices and lets two worlds meet, yours and hers, until they become one inside the track.
Work with Inès →
Studio Couleur de Son
Jérôme
Mixing & mastering engineer
A hands-on approach to sound, between analog warmth and modern precision. Specialized in pop, songwriting and hybrid worlds, Jérôme shapes every mix so it tells a story - before the words even begin.
Work with Jérôme →Good to know
Frequently asked questions
How do I get my music mastered online?
Upload your track as a WAV or AIFF file to Osmuse: the file reaches us instantly and is mastered by hand at the Paris studio, on a high-end hybrid processing chain (analog hardware WesAudio ngComp, Bettermaker Bus Compressor + cutting-edge software). You receive a listening link within 3 to 5 business days. The first track is free.
Is hand mastering better than automatic mastering?
For musicality and depth, yes: unlike cloud-based algorithmic auto-mastering services, Osmuse masters every track by hand on a hybrid chain combining real analog gear and cutting-edge software. You get an organic sound, with a color and dynamic an automated process cannot reproduce.
How much does online mastering cost at Osmuse?
Stereo mastering starts at €55 per track. Osmuse also lets you listen to a free excerpt for 4 days, with no credit card required, before approving the price and unlocking the full master.
How long does it take to receive my master?
Expect 3 to 5 business days after uploading your track. You receive a listening link by email to approve the result before the final files are delivered.
Which file formats should I send for mastering?
Send an uncompressed stereo mixdown as a WAV or AIFF file, ideally 24-bit, with a few dB of headroom and no limiter on the master bus.
Where is the Osmuse mastering studio located?
The studio is based in Paris. The service is fully online: artists worldwide can upload their tracks remotely and receive analog mastering processed at the studio.