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soundassist.online
Mastering · for artists and labels
A SoundAssist engineer masters your track in our studio. Listen, compare it with your original mix at the same loudness, and tell us what you think. You only pay when you love it.
Human ears. Personal attention.Lossless audio.Listen before you pay.
Stereo mastering
€59,99
per track, incl. VAT. You only pay when you love the master.
Master my trackOr start free with a private track pageHear it yourself
Players of GameMambucca · played on Boiler RoomNow: premaster
Press play to compare Mambucca’s premaster with our master. Click A/B or press X to switch.
Mastered one day. Played at Boiler Room the next night.
Made here


ATC SCM50 ASL PRO · dual SCS70
Accuracy, not flattery.

PSI Audio AVAA C214
Less room resonance. Clearer decisions in the low end.

Benchmark DAC3 HGC
Clean conversion. Critical listening.
We wanted you to hear what we hear and talk through your music as if you were here in the studio. So we built SoundAssist: lossless audio, a shared place to listen, and a direct conversation with your engineer. Mastering is still our main craft.
Played there
Nicolas, Mambucca
@Andre soundassist your mastering is 🥵22:34
Andre, SoundAssist
Thnx boys! Lovely tracks.00:03
Players of Game · Mastered by SoundAssist
Boiler Room, filmed by the artists. Press play for sound.
Upload a WAV, AIFF or FLAC file. Your track gets its own private page, where you can tell us what you’re looking for and ask questions.
Your engineer listens in our studio and masters your track with care. Talk it through on your track page or on WhatsApp.
Compare your master with your original mix at the same loudness. Tell us what you think, and we refine it with you. You only pay when you love it.

Release of the month

Glök · Streamlines Records
Mastered by SoundAssist
Mastered by SoundAssist. The same care and attention are here for your track.
For labels: bring your artists and team together on one private page per track. Keep versions, stems and project files together, and approve the master before release.
Listen to the recordStereo mastering
€59,99
per track, incl. VAT
Tell us what isn’t working for you, and we’ll refine it with you. You only pay when you love the master.
A SoundAssist engineer, working in our studio. If you’ve already been working with an engineer on earlier versions, that same engineer masters your track.
As soon as possible, and never longer than a work week. Have a release date or a show coming up? Let us know when you send your mix.
Yes. Each track gets a private page where your artists and team can listen, leave feedback and approve the master before release.
Answers to the questions you have about your track, on your track page: is the low end right in the mix before mastering, should the vocal sit lower, and so on. You get your master back in the same sample rate as your file. Special wishes? Tell us when you send your mix, and we’ll think along about what’s needed.
Free to use
The master is finished. Your track page stays with you.
Keep your versions, feedback and files together. Keep it private, or keep working with your people on whatever comes next.
5 GB and 10 tracks, free. No card, no time limit.