Automatic track mastering
- By genre
- Ready-made presets
- Builder
- A/B with loudness matching
- LUFS / true peak
- Album up to 10 tracks
- 24-bit WAV + 320 MP3
Upload a mix — compare styles — download the master
You only need a free Stream-Q account. Previews are free every day, and the first 5 full masters are free too.
How the chain works
Every variant is a classic mastering chain, like an engineer's in a studio: console colour and gentle compression, harsh-resonance taming, EQ, a pull toward the genre's tonal balance, saturation, a clipper and a true-peak limiter. All moves are small — fractions of a decibel of EQ and 1–3 dB of compression: mastering improves a mix, it doesn't remake it.
There are many variants not because someone drew them by hand: the genre sets the base, the character adds colour, the intensity sets how hard it processes, and the loudness sets the LUFS target. That's 3,780 meaningful combinations before fine-tuning stereo width, mono bass and saturation.
- Genres (21): Universal, Hip-hop / rap, Trap, Drill, Phonk, Pop, Indie / alternative, Rock, Metal, Punk, EDM / house, Techno, Drum & bass, Dubstep / bass, Lo-fi, R&B / soul, Jazz / acoustic, Classical / orchestral, Chanson / estrada, Lyrical rap / vocal-centred, Ambient.
- Characters (10): balanced, warm, bright, punchy, open / airy, vintage / tape, clean / transparent, aggressive, soft, bassy.
- Loudness: Streaming −14, Loud −11, Club −8, YouTube −14, Apple Music −16, SoundCloud −9 LUFS — with true-peak headroom.
- AI mode for tracks from Suno, Udio and other generators (4 variants): removes metallic ring and hiss, brings back drum attack, rebuilds the missing top.
A/B comparison — honest, no loudness tricks
The ear almost always picks whatever is louder. So the player has a “match loudness” mode: the original and every variant play equally loud, and you only hear tone, density and width. Switching is gapless, at the same spot in the excerpt. Each variant shows its numbers: LUFS, true peak, LRA and PLR.
Albums and EPs
In “Album” mode up to 10 tracks go through the same chain to the same target loudness — the release sounds even, with no jumps between tracks. Each track downloads separately.
What automatic mastering can't do
It won't fix a bad mix: if the vocal is buried or the bass booms, go back to the mix — the free analyzer will show what's off in the numbers. For an important release, a human mastering engineer will hear what an algorithm won't. Automatic mastering is great for demos, singles, sending to a streamer and quick releases.
FAQ
How much does it cost?
Previews are free: up to 30 variants a day (a 30-second excerpt). Full masters: the first 5 tracks are free, then 40 Notes per track. Notes are Stream-Q's bonus currency: you earn them for tracks rated on streams and other activity on the site; they can't be bought.
What if the mastering fails?
If a render fails, or you cancel a job while it's still queued, the free credit or the Notes you spent come back automatically.
What format will I get?
24-bit WAV (at the source sample rate, no lower than 44.1 kHz) for distribution and 320 kbps MP3 to play on a phone or send in a chat. Files are kept for 30 days; the loudness figures stay in your history.
Who will hear my track?
Nobody but you: the files are private and can only be downloaded from your account. The source is deleted 7 days after it was last used, previews after 3 days.
Why doesn't a loud master sound louder than others on Spotify?
Spotify, YouTube, Yandex Music and Apple Music normalize loudness (to about −14 LUFS, Apple to −16). A track that's too loud just gets turned down, and the dynamics squashed by the limiter don't come back. That's why “Streaming −14” is a sensible default, and “Club −8” is for DJs and systems without normalization.
How is this different from BandLab or LANDR?
The idea is the same — upload, pick a style, get a master. The differences: 51 ready-made presets and a builder instead of a couple of styles, comparing up to 4 variants on one excerpt with loudness matching, and honest LUFS/true peak numbers for every variant.
What if I don't know the genre?
Use “Auto”: if the track was already checked by the analyzer or sent to a streamer with a genre, we use that; otherwise, a universal chain. Then add a couple of characters (“warm”, “bright”) to the comparison and choose by ear.
Related
Online mastering
Mastering in the browser: upload a mix, pick a style, download the master. No plugins or DAW.
AI track mastering
For Suno and Udio: remove metallic ring and hiss, bring drums to life, restore air on top.
Free mastering
The first 5 full masters and previews are free, with no watermarks.
Track analyzer
A full technical report: loudness, peaks, dynamics, tempo, key, stereo and file quality.
Mastering by an engineer
For an important release — a human sound engineer in the Stream-Q services catalogue.