A mastering plugin that listens before it touches anything
Most mastering plugins give you a rack and a manual. Master starts by listening. Play the loudest ten seconds of your mix and tap Listen: it measures the tonal balance in 31 bands, the loudness to ITU-R BS.1770-4, the true peak, the crest factor, the stereo image and how mono the low end is, then compares all of it with the target for your genre and platform.
It sets four moves and tells you why, in plain words: "Sub light for trap: +2.4 dB around 40 Hz", "Dynamics: crest 13 dB vs about 8 dB in trap masters, so Glue at 80%", "Spotify plays at −14 LUFS: Loud adds about 6 dB with a −1 dBTP ceiling". Every move stays a knob you can change.
Before → after
Target: Pop on SpotifyPlay the loudest part of your track and tap Listen. Ten seconds later Master has set Tone, Glue, Width and Loud for your genre and platform.
Tone
match · tilt · airGlue
Width
Loud
ceiling -1.0 dBTPThe real plugin engine, running in your browser: same DSP code and presets as the VST3/AU/AAX.
Tone, Glue, Width, Loud
Tone
- What it does
- A smooth 8-band match EQ that moves your balance toward the genre target (40 Hz to 14 kHz)
- Extra controls
- Tilt, air, low-end shelf
Glue
- What it does
- Three-band compression (crossovers around 180 Hz and 3.5 kHz) that evens the dynamics without pumping
- Extra controls
- Punch (attack), warmth
Width
- What it does
- Mid/side width with the low end folded to mono below 60–200 Hz
- Extra controls
- Correlation meter
Loud
- What it does
- 4x-oversampled true-peak limiter with lookahead, driving up to +16 dB to the platform target
- Extra controls
- Ceiling, character
Hear it on Spotify, Apple Music and the club
Streaming services turn loud tracks down and some turn quiet ones up. Hear it on Spotify applies the platform's normalisation to your output and shows the gain: a master at −8 LUFS comes back 6 dB quieter on Spotify, with all of its limiting still there. Switch between Spotify (−14), Apple Music (−16), YouTube (−14, down only), Amazon and Tidal, SoundCloud and Club / DJ, and pick the loudness that sounds best where it will actually play.
Spotify
- Normalises to
- −14 LUFS
- Turns quiet tracks up
- Yes, within −1 dBTP
Apple Music
- Normalises to
- −16 LUFS
- Turns quiet tracks up
- Yes
YouTube
- Normalises to
- −14 LUFS
- Turns quiet tracks up
- No
Amazon Music / Tidal
- Normalises to
- −14 LUFS
- Turns quiet tracks up
- Yes
SoundCloud
- Normalises to
- about −14 LUFS
- Turns quiet tracks up
- No
Club / DJ
- Normalises to
- none
- Turns quiet tracks up
- Masters usually −9 to −7 LUFS
Metering you can trust
- Loudness to ITU-R BS.1770-4: momentary, short-term and gated integrated, tested to within 0.1 LU on the EBU reference signals.
- True peak with 4x oversampling, tested within 0.2 dB on inter-sample-peak signals; the limiter never exceeds the ceiling at 44.1, 48 or 96 kHz.
- Compare plays your mix and the master at matched loudness (within 0.1 LU), so louder doesn't fool you.
