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Online music mastering

We bring a finished track up to streaming standards: frequency balance, dynamics, loudness and clipping protection. Go to mastering →

2 FLAC
24-bit output
−14 LUFS
Streaming standard
Credits per track
— min
Maximum length

What you get

One job gives you two finished files and a free pack for the platforms.

Master

A 24-bit FLAC ready for release: even loudness, a tight low end, a readable midrange and peak headroom so platform codecs do not push it into distortion.

Master + cleanup

The same master with generation artifacts cleaned up: we tame the ringing, "glassy" top end. Vocals, transients and stereo are untouched — only what rings changes. Compare by ear.

Release pack

FLAC, a 16-bit / 44.1 kHz WAV for distributors, a 320 kbps MP3, a 3000×3000 cover, the lyrics and a loudness report. Built free of charge.

How it works

1

Pick a source

One of your own tracks from the Music section, or a file from your device.

2

Pick a loudness

Three presets for different platforms and genres. Streaming is the default.

3

Wait for processing

Usually a few minutes. Jobs run one at a time and the status is shown on the track card.

4

Download the result

Two FLAC files with embedded cover art and tags, or the whole release pack as a single archive.

Loudness presets

LUFS measures perceived loudness. Streaming services normalise every track to their own level, so the goal is to hit that level in advance rather than squeeze out every last decibel.

Streaming

−14 LUFS

Spotify, YouTube, VK Music, Yandex Music

The all-purpose choice. Platforms normalise every track to their own level anyway, and a master with headroom sounds cleaner than a squashed one.

Loud

−10 LUFS

Pop, electronic, club music

A dense, forward sound for tracks that have to cut through in a club or in headphones on a noisy street.

Soft

−16 LUFS

Apple Music, acoustic, jazz, classical

Maximum dynamics: quiet passages stay quiet and the peaks stay loud.

In every preset the peaks stay below −1 dBTP: with that headroom the track survives conversion to AAC or MP3 on the platform's side without distortion.

Standard and Studio

The processing is the same in both — what differs is the final limiter, the stage that raises loudness and holds back the peaks.

Standard

— cr.

Automatic mastering: frequency balance, dynamics, loudness. It suits most tracks and is available at any allowed length.

Studio

— cr.

A precision limiter: gentler on transients and dynamics — you can hear the difference on drums and vocals in dense mixes. It takes longer and needs a lot of memory, so it is available for tracks up to — min.

Source requirements

You can master a track from your Music section or a file from your device — recorded or mixed anywhere.

Format

WAV, FLAC or AIFF work best. MP3 and M4A are accepted too, but compression has already discarded part of the sound and mastering cannot restore it.

Length and size

Tracks up to — min, files up to — MB. For the Studio tier, up to — min.

Tracks made here

If a generated track has a WAV version, mastering uses it automatically. If not, the form offers to make one first for the conversion fee.

Cover art and stems

Everything else a release needs sits right next to mastering.

AI cover art

The image is drawn from the title, the style and the lyrics, and you add your own wishes — imagery, colours, mood. You can ask for the title and artist name to be written on it. The finished cover is saved to your gallery, embedded in the FLAC files and included in the release pack at 3000×3000. Instead of generating one, you can pick any image from your gallery.

Stem separation

Vocals and backing track — for karaoke and covers. All instruments — up to 12 stems: vocals, backing vocals, drums, bass, guitar, keys, strings, brass and woodwinds, percussion, synth, effects. Or a single instrument on its own. All stems download as one archive.

Pricing

ActionCredits
Mastering, Standard (2 files)— cr.
Mastering, Studio (2 files)— cr.
Release packfree
Cover art, 2K— cr.
Cover art, 4K— cr.
Separation: vocals + backing track— cr.
Separation: all instruments— cr.
Separation: a single instrument— cr.
If a job ends in an error, the credits are refunded automatically.

Frequently asked questions

What is mastering and why do I need it?

Mastering is the final treatment a finished track gets before release. It evens out the frequency balance, tidies up the dynamics and raises loudness to the level streaming platforms expect, without letting the signal clip. Skip it and your track will sound quieter and duller than its neighbours in a playlist.

How is mastering different from mixing?

Mixing works on individual tracks: the balance between instruments, the stereo image, the treatment of each source. Mastering works on the finished mix as a whole. What we do is mastering — we do not rebalance individual instruments. If you need the track broken back down into parts, there is a separate stem separation feature for that.

Which loudness should I pick?

"Streaming" (−14 LUFS) suits almost everyone: it is the level Spotify, YouTube, VK Music and Yandex Music normalise tracks to. "Loud" (−10 LUFS) is for pop, electronic and club music, where density matters. "Soft" (−16 LUFS) is for acoustic, jazz and classical material that needs dynamic headroom.

How does "Studio" differ from "Standard"?

The processing chain is identical; the final limiter differs. "Standard" uses a regular limiter, "Studio" a precision one that treats transients and dynamics more gently — on dense mixes you can hear it on drums and vocals. Studio takes longer to compute and needs considerably more memory, so it is available for shorter tracks.

What is the second file, "Master + cleanup"?

It is the same master with an extra cleanup pass: we find narrow ringing resonances in the upper spectrum — the glassy, metallic ring that music generators leave behind — and gently tame them. Vocals, transients and stereo stay untouched. The difference is subtle and easiest to hear on cymbals and sibilants — compare both versions and pick yours. It is sound processing, not disguise: it is not meant to get past AI-music checks on platforms.

Can I master a track that was not made here?

Yes. Choose "Upload file" in the mastering form — any track of yours will do, recorded or mixed anywhere. The file size and track length limits are shown in the form itself.

Will an MP3 work as the source?

It will, but WAV, FLAC or AIFF give a better result: MP3 compression has already thrown part of the sound away, and mastering cannot bring it back. If the track was generated here and already has a WAV version, mastering uses it automatically; if not, tick "Make a WAV version first" in the form, which adds the conversion fee.

How long does it take?

Usually a few minutes. Jobs run one after another, so at peak times your track may wait a little: the status is shown right in your track list, and the card updates itself when the files are ready.

What is in the release pack?

A 24-bit FLAC, a 16-bit / 44.1 kHz WAV — the format distributors ask for — a 320 kbps MP3, a 3000×3000 cover, the lyrics and a loudness report with before-and-after measurements. The pack is built free of charge: you only pay for the mastering itself.

Do I get my credits back if the job fails?

Yes. If a job ends in an error, the credits return to your balance automatically — you only pay for a finished result.

Who owns the rights to the result?

The files are yours — we claim no rights to them and we do not publish your tracks. Do keep in mind that platform and distributor rules on AI-assisted music keep changing: check the requirements of the service you release through before you upload.

Master your track

Pick a track from your list or upload a file — a few minutes later your FLAC files and release pack are waiting.

Go to mastering

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