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Service 04 — Mastering

Mastering

The last technical look before release: level, consistency between tracks and formats suited to each medium.

Mastering engineer listening between two monitors

Mastering prepares a mix for the public. It adjusts the overall tonality, dynamics and level, ensures consistency between the tracks of a record, and produces the files expected by streaming platforms, CD replication plants and vinyl cutting rooms.

Fresh ears are often valuable at this stage. We master songs mixed here and elsewhere. Mastering does not replace a good mix, but it can correct a slight imbalance, bring cohesion and make a project sound the same on every playback system.

Process

Four steps, no surprises

  1. 01

    Receive

    Final mix as WAV, with no limiter on the main bus, a few decibels of headroom, and your references.

  2. 02

    Listen

    A full listen to the project, noting differences between tracks and any technical problems to flag.

  3. 03

    Master

    Equalisation, dynamics control, level, fades, gaps between tracks and basic metadata.

  4. 04

    Deliver

    Files for streaming, and optionally DDP for CD and a vinyl pre-master. One round of revisions included.

Preparing your mix for mastering

Send a stereo WAV file at the mix resolution, 24-bit minimum, with no limiter or maximiser on the main bus. Leave roughly three to six decibels of headroom below digital zero. Don't trim the start or end of the song too tightly: we handle fades and silences ourselves. If you want to keep a particular bus process, send two versions, with and without.

For an EP or album, give the running order, the transitions you want and the tracks that should run without a gap. Include your references and, if possible, the rough mix you liked at home: it helps us understand what you expect.

Loudness and platforms

Streaming platforms normalise playback volume: a track mastered very loud will simply be turned down, having lost dynamics along the way. So we aim for a level suited to your style and audience, loud when the aesthetic calls for it, more open for jazz, acoustic or classical music. We also watch true peaks to avoid distortion when converting to compressed formats.

Our article on master formats explains these notions simply, with the points to check before sending your files to a distributor.

CD, DDP and vinyl

For CD replication, the plant usually expects a DDP file: an image of the disc containing the audio, running order, gaps, ISRC codes and the EAN barcode if you have them. We create this file as an option and provide a check file so you can verify the result. ISRC codes are assigned by you or your distributor; we embed them as you supply them.

For vinyl, cutting imposes physical constraints: low frequencies must be centred, sibilance controlled, and the running time per side affects the achievable level. We prepare a pre-master adapted per side, as an option, and can talk directly with the cutting room.

The revision round

Mastering includes one round of revisions. Listen to the files on several systems and group your notes: "track 3 slightly brighter than the others", "end fade too long on track 5". If a note actually concerns the mix, a vocal balance for instance, we tell you: sometimes it is better to fix the mix than force the master.

Extra rounds are charged for the time spent, on prior quote. If you send a new mix after mastering, it is treated as a new track.

Attending the mastering session

You can attend the session in the control room. It is often an opportunity to hear your project for the first time on reference monitoring in a treated room. We explain our choices and confirm the running order and transitions together. Most masters, however, are done remotely, with discussions by email.

Rates

Mastering a single track costs €55 including VAT. For an EP of four to six tracks, the package is €240 including VAT. The DDP file for CD replication is an option at €40, and the vinyl pre-master €25 per side. For an album we quote based on the number of tracks and the target media. Usual turnaround is three to five working days after receiving complete files.

What mastering does not do

Mastering works on the final stereo mix: it cannot bring up a vocal buried in guitars without affecting everything else, nor remove a flaw present on a single track. If we spot such a problem, we tell you before starting and, if you wish, suggest stem mastering or revisiting the mix. That honesty saves you time and money.

Stem mastering means sending four to eight grouped stereo tracks, such as drums, bass, music and vocals, instead of a single mix. It gives a little more control over balance at the final stage, and it is quoted separately depending on the number of stems.

What is included

  • Full listen to the project
  • Equalisation, dynamics and level
  • Fades, gaps and transitions
  • Files for streaming
  • 1 round of revisions
  • Checks on several playback systems

See the full price list

FAQ

Frequently asked questions

Full FAQ
01Do you master songs mixed elsewhere?

Yes. Many artists mix in one studio and master in another to benefit from fresh ears.

02What loudness do you aim for?

A level suited to the style and platforms. We avoid crushing dynamics, which platform normalisation would offset anyway.

03Can you add my ISRC codes?

Yes, in the DDP and in the file metadata if you supply them. They are assigned by you or your distributor.

04Does vinyl need a different master?

Yes, preferably. Cutting imposes constraints on low end, sibilance and running time. The vinyl pre-master is offered as an option per side.

A project in Strasbourg?

Let's talk about your next session

Describe your project: we reply within one working day with a slot and a written quote, no commitment.