Auto-Mastering
Terms of service
These terms cover your use of the Auto-Mastering app ("the app") and its plans. The app is provided by Soundliminal LLC, trading as Sound Pro Academy ("we", "us"). By using the app you agree to these terms. If you do not agree, please do not use it.
1. What the app does
The app masters a mix toward a reference track you choose, matching its dynamics, stereo width, tone and loudness, with a control for each stage. The processing runs in your web browser on your own computer. It needs a desktop or laptop computer with an up-to-date browser, and it does not support phones. We may improve, change or remove features over time.
2. Your account
Your account is a Sound Pro Academy account: the same email also signs you in to the Academy's member portal. Keep your sign-in details to yourself and give us accurate information. An account is for one person; please do not share it. You are responsible for what happens under your account.
3. Plans and payment
- Free. A monthly allowance of mastering projects, at the standard settings, with a monthly allowance of MP3 downloads. The allowances are shown in the app.
- Paid plans. The Standard, Premium and VIP memberships put your own settings in the file, add formats and sample rates, and give larger monthly allowances of mastering projects and downloads (unlimited mastering projects on Premium and VIP), shown in the app.
- Premium and VIP memberships. The Sound Pro Academy memberships, which include Auto-Mastering and every other app. They are sold through our community platform, and our main terms apply as well as these. The paid features are unlocked on your account once we have confirmed your membership, and switched back to the free plan when it ends.
What counts as a mastering project. A mastering project is one mix with one reference. The same mix with another reference is a new project. Preparing the same two files again, at any time, and moving the faders, is not counted again. A new bounce of the mix is a new project.
What counts as a download. A download is one finished version of a track: this mix, this reference and these settings. The same version in another format of the same kind (for example WAV, then FLAC) is not counted again within the month. A different reference, a new version of the mix (even a small change), or different settings is a new version. MP3 and lossless downloads are counted separately.
Monthly limit. Each plan has a monthly allowance of mastering projects and downloads, shown in the app, for your own music and the music you work on for your clients. The count resets on the 1st of each month, and unused downloads do not carry over. We may limit unusually heavy use of the service to keep it fast for everyone.
You can cancel a subscription at any time. Cancelling stops the next renewal, and you keep Pro until the end of the period you have paid for. If we change the price of a plan, we will tell you before the new price applies to your next renewal. Prices may be subject to taxes, depending on where you live.
4. Refunds
Payments are final. We do not give refunds, in full or in part, because the first 7 days of Premium are free and you can cancel before you pay anything. You can cancel at any time and you will not be charged again; you keep the plan until the end of the period you have paid for.
If the law that applies to you gives you a right to cancel or to a refund, that right stays. Payments made before 5 November 2026 keep the refund terms that applied when they were made.
5. Your music
You keep every right to your mixes, your references and the masters the app makes. We claim no ownership of any of it, and your audio is never uploaded to us. You are responsible for having the right to use the audio you load into the app. By loading a track you confirm that you own it or have permission to use it, and you accept sole responsibility for any copyright claim that comes from the masters you make or share with it. Sound Pro Academy and Soundliminal LLC are not responsible for that. The reference track is only analysed, on your computer, to guide your master; none of it is placed in the file you download.
6. Using the app fairly
Please do not:
- get around plan limits or payment, or help anyone else to;
- copy, scrape, redistribute, decompile or reverse-engineer the app, its code or its decision service, or use the service except through the app;
- use automated tools to make masters in bulk, or resell access to the app;
- interfere with the service or other people's use of it.
If you break these terms, we may suspend or close your account.
7. Our software
We give you a personal, non-exclusive, non-transferable licence to use the app for as long as you have access to it. The app and everything in it, apart from your music, belong to us or our licensors. Some parts are open-source software provided under their own licences, which are included with the app.
The app's code, audio engine and decision logic are protected by copyright. © 2026 Soundliminal LLC. All rights reserved. You may not copy, redistribute or build another product from them.
The software carries hidden fingerprints. They are small, unique marks placed in the code, never in your music, and they do not change your audio in any way. If a copy of our code or service appears somewhere else, the marks show that it came from us. We check for them regularly. If we find a copy, we will have it removed and may take legal action. If you see one, please tell us at a.administration@soundproacademy.com.
8. No guarantees about results
The app gives you a master based on your mix and the reference you choose, and how it sounds depends on both. Listen to your master carefully before you release it.
THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE", WITH NO WARRANTY OF ANY KIND. WE DO NOT PROMISE THAT IT WILL WORK WITH YOUR SYSTEM, RUN WITHOUT ERRORS, STAY AVAILABLE, OR SUIT ANY TRACK OR PURPOSE.
9. Our liability
YOU USE THE APP AT YOUR OWN RISK. WE OWE YOU NOTHING FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING: A HOST, DAW OR COMPUTER CRASH OR FREEZE; LOST OR DAMAGED SESSIONS, PROJECTS, RECORDINGS OR FILES; DAMAGE TO SPEAKERS, HEADPHONES OR HEARING FROM LEVELS YOU SET; AND ANY USE THESE TERMS OR OUR DOCUMENTATION DO NOT ALLOW. KEEP YOUR OWN BACKUPS.
THIS CLAUSE APPLIES TO THE FULLEST EXTENT ALLOWED BY THE LAW THAT APPLIES TO YOU.
10. Ending
You can stop using the app and close your account at any time by emailing us. We may end the service with reasonable notice, and we may suspend an account immediately to stop abuse.
11. Changes to these terms
If we change these terms, we will update the date at the top and, for changes that matter, tell you in the app or by email before they take effect. If you keep using the app after that, you accept the new terms.
12. Law
These terms are governed by the laws of the State of Wyoming, United States, where Soundliminal LLC is registered. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live, and you can bring a claim in its courts.
13. Contact
Soundliminal LLC, trading as Sound Pro Academy. a.administration@soundproacademy.com