You are one upload away from Spotify. Before you click it, there is a decision nobody forces you to make visibly: do your audio the way you exported it — or master it first? Distributors like DistroKid don't tell you either way; they just hand you a checkbox and an optional $99/year mastering add-on. This page unpacks both options with real numbers (verified August 28, 2026) so you spend money only where it changes the result.
What DistroKid itself offers for this step
| Option | Price (Aug 2026) | What it does |
|---|---|---|
| Mixea built-in mastering | $99/year, unlimited tracks; first mastered track free (distrokid.com/mixea). EQ options + Intensity slider per master; output as 24-bit/48kHz WAV | A full second mastering engine inside your distributor: upload the mix, pick settings, attach the result to the release. Speed is similar to any web master — minutes, not hours |
| "Loudness Normalization" album extra (optional) | Per-release add-on; skipped entirely if your file already meets target — DistroKid's own help center says it adjusts audio to "Spotify's recommended settings: -14dB integrated LUFS with -1dB true peak maximum" and you are not charged when the release is already at optimal loudness | Not a master — an automatic gain/limit pass to hit streaming numbers. Useful safety net, not tonal work |
| Upload as-is | Free (you pay only your base plan: Musician $24.99/yr, Plus $44.99/yr for unlimited releases) | Your file goes through untouched — whatever its loudness and peaks are, that is what every platform receives and re-encodes |
Three consequences of that table:
- Mixea makes "I'll do it in DistroKid" a real option at ~$8 per track if you release 12 tracks/year on the $99 plan — competitive with any external per-track master, and the workflow glue is unbeatable (master and upload happen in one screen).
- The loudness extra reveals the actual risk of uploading raw: a file that misses −14 LUFS / −1 dBTP gets an automatic adjustment by someone else's limiter chain — you can't audition it first.
- Neither option is genre-aware in any meaningful sense. Mixea gives EQ/intensity dials; loudness normalization gives nothing but gain+limit. If your track needs a sound decision (denser lows, airier top, tighter low-end for a trap mix), you are making that call yourself before upload — or outsourcing it to an external master.
The pre-upload checklist (works no matter who masters)
Before any mastering step, measure the file you have:
| Check | Target for 2026 streaming delivery | Where to check |
|---|---|---|
| Integrated loudness | ≈ −14 LUFS (the Spotify-family norm; a ±2 LU tolerance is normal practice) | free browser LUFS meter — computed locally, nothing uploaded |
| True peak | ≤ −1 dBTP; keep −2 dBTP if you are louder than −14 LUFS | Same tool (true-peak reading with oversampled math); theory at what true peak actually is |
| Format for upload | 24-bit WAV (or the highest-quality mix export you have; MP3-in = information lost before mastering even starts) | Your DAW / Suno export settings — see the format section of mastering Suno output if that is your source |
| Headroom between sections | Loudest moment ≈ your target; quiet parts may sit 4–8 LU below (dynamics survive normalization fine — platforms turn tracks down, they don't crush them) | A/B the chorus vs verse on a loudness meter; what LUFS measures explains integrated vs short-term readings |
If all four already pass: you may not need any mastering service for this release. Some mixes arrive stream-ready (especially after careful mixing). The free meter above is the difference between "I should master it because everyone says so" and "my file clips −0.3 dBTP and will crackle on phones — fixing that."
When to master externally vs in DistroKid
| Situation | Pick | Why |
|---|---|---|
| You release ≥12 tracks/year and live inside DistroKid's flow | Mixea ($99/yr) | ~$8/tracker beats most per-track pricing, zero context-switching |
| Your output is AI-generated (Suno/Udio) in batches | External per-track master | DistroKid's own ToS territory around AI content is theirs to interpret; an independent master has no such policy — ours explicitly targets generated audio. Full workflow: mastering Suno output |
| The track needs a sound decision, not just numbers (genre tone, density, low-end control) | External master with style targeting | 11 patterns × up to 3 variants per upload here; Mixea's dials are EQ/intensity only. Compare the control models on our eMastered comparison — manual knobs vs variant picking |
| One-off release, minimal budget | Free daily passes + $5 WAV when satisfied | Three processing attempts free per day with no card; you pay $5 only for the finished 24-bit file. Total worst case: one track = $5 |
| You already own a DistroKid plan but not Mixea | Either — decide by output volume first, then taste-test one track in both | Audition cost is near zero either way (first Mixea master is free; our free tier covers the same test) |
The workflow I recommend for an independent artist uploading to DistroKid
- Measure raw with the free browser tool. Write down integrated LUFS + true peak.
- If it fails spec → master (Mixea or external, by the table above) targeting ≈ −14 LUFS / ≤ −1 dBTP.
- Measure the master with the same free tool. This single habit saves more releases than any plugin: you confirm what actually leaves your machine before a distributor's pipeline re-encodes it.
- Upload the 24-bit WAV. If DistroKid offers Loudness Normalization and your file is already at target — per their own docs they skip charging when nothing needs adjusting; if it isn't, ask yourself whether you'd rather have their blind limiter run on it or fix step 2 properly first (true-peak mechanics: /blog/true-peak).
- Keep the MP3 preview for sharing pre-release links; keep your WAV as the archival delivery file in case a platform rejects something and you need to re-deliver quickly.
Frequently Asked Questions
Does DistroKid master my tracks automatically if I don't opt in?
No — both Mixea mastering and the Loudness Normalization extra are opt-in. If you touch neither, your audio ships exactly as uploaded (that is where "measure before upload" earns its keep).
Is $99/year for unlimited Mixea mastering a better deal than per-track?
At ~12+ paid-quality masters a year, usually yes; below that, a $5 one-off per track costs less and never expires. The crossover math on subscriptions vs per-track is worked out with live numbers on our LANDR alternative page — the same logic applies here.
My mix sounds fine to me but sits at −9 LUFS loud. What happens?
It gets normalized down to the pack by streaming platforms (you don't lose streams), and if your peaks cross the ceiling, their encoders clip audible intersample peaks into the file listeners hear — see true peak explained. A gentle master that lands you at −14 with headroom sounds equal-to-louder in practice because nothing is being shaved off after upload.
Will mastering change how my track looks on playlists/editorial?
No algorithm reads your LUFS for playlisting, but editors and curators do hear a stream-ready file differently from an inconsistent one — especially across EPs where matching all tracks to the same pattern keeps them sounding like a set (the trick is covered in mastering Suno output). Mastering is a release-quality signal more than a ranking input.
Can I use both Mixea AND an external master?
You can audition both: the first Mixea master is free, and our free tier gives 3 passes/day with no card. Master once externally to a style target, compare against a Mixea EQ pass on the same file, pick your favorite — then pay for only what you keep ($5 WAV or $99/yr plan, your call).