GOD KEY Mastering
By Rebel G SocietyMastering that shows its work. It listens to your whole track, builds a chain calibrated to it and tells you exactly what it did. Hear the difference before you pay.
Master your trackFree preview · $4.99 per master · 24-bit WAV + MP3
Master your track.
Hear it before you pay.
Sign in to upload a track. It takes one email link, and your masters stay in your account.
Sign in to startFrom EQ to true-peak limiter
16 character, 17 genre
Streaming safe to club loud
DSP, metering, Auto Master and more
How it works
- 1Upload
Drop in your mix: WAV, AIFF, FLAC, MP3 or Ogg.
- 2Choose
Pick one of 33 profiles, a loudness target and an intensity from 0 to 100.
- 3Compare
Switch between your mix and the master, free, at the same loudness if you like.
- 4Download
Love it? Pay once and get a 24-bit WAV and an MP3 320.
Pick a profile, a loudness target and an intensity. The plan is built from real renders of your song through the engine, then explained move by move.
Upload a track you love as a reference and move your master toward its tone and loudness, without cloning it.
EQ, dynamic EQ, compressor, multiband, saturation, stereo imager, clipper and a true-peak limiter, set up for your song.
BS.1770 loudness and true-peak metering, and a lookahead limiter that held its ceiling in every test signal and sample rate.
16 character and 17 genre profiles tell the engine what matters for your style.
A free before and after preview from the loudest part of your track. Pay only if you love it.
Features
Analysis
- Listens to your whole track, not a short sample
- Loudness, loudness range, true peak, crest factor and PLR
- Seven tonal zones from Sub to Air, plus resonances and tilt
- Stereo width, correlation and low-end phase
Mastering
- Auto Master builds a chain calibrated to your song
- 33 profiles: 17 genre and 16 character
- 8 loudness targets, from Broadcast-style to Very Loud
- Intensity control from 0 to 100
- True-peak limiting that holds its ceiling
Reference matching
- Upload a track you love as a reference
- Match from 0 to 100%
- Moves tone, loudness, density and width toward it
- Never clones the reference
Listen before you pay
- Free 30-second preview from the loudest part
- Switch between your mix and the master instantly
- Same Loudness compare, for honest listening
- A report of every move the engine made
- Up to 5 free tries with different settings
Your files
- Upload WAV, AIFF, FLAC, MP3 or Ogg
- Mono or stereo, 44.1 to 192 kHz
- Up to 15 minutes and 300 MB per track
- Get a 24-bit WAV and an MP3 320
Your account
- Masters stay in your account for 30 days
- You keep all rights to your music
- Delete unpaid audio any time
- Pay per master, with no subscription
Not a preset picker
Auto Master measures your track, plans bounded moves for each stage and calibrates them by rendering your music through the actual processing chain.
What it measures
- Integrated, short-term and momentary loudness, loudness range, sample and true peak, crest factor and PLR
- Seven tonal zones from Sub to Air, a 1/6-octave spectrum relative to pink noise, tilt and resonances
- Stereo width and correlation overall and per band, low-end phase and transient density
- Only the audible part of the song counts; the loudest 12 seconds are used for calibration
How it decides
- Every move has limits: EQ boosts of at most +2.5 dB, at most 3 dB of average compression, width changes of at most 15%. Empty frequency zones are never boosted.
- Thresholds and limiter drive are solved by rendering your track through the real modules.
- The final render predicts loudness, true peak and PLR. If a target is out of reach within the profile’s dynamics budget, the report says so instead of forcing it.
Loudness targets
LUFS. Club targets −0.3 dBTP. Or let each profile choose its natural loudness.
A complete mastering chain
Ten stages, set up for your song. Clipper, Limiter and Output always run last, so the ceiling always holds.
- 01InputTrim, polarity, L/R swap, 3 Hz DC filter
- 02EQ8 bands, analogue-matched curves, stereo / mid / side
- 03Dynamic EQ4 bands, downward or upward
- 04CompressorGlue: ratio 1–10, auto attack & release, parallel mix
- 05Multiband4 bands, phase-compensated Linkwitz-Riley crossovers
- 06Saturation8 original models, oversampled up to 8x
- 07StereoWidth in 4 bands, mono bass, phase protection
- 08ClipperSoft, medium or hard knee, oversampled
- 09LimiterLookahead true-peak, four characters, −3 to 0 dBTP
- 10OutputFinal level and 24-bit delivery
Profiles for your sound
17 genre profiles
- Hip-Hop
- Trap
- R&B
- Dancehall
- Reggae
- Afrobeats
- Pop
- Rock
- Alternative
- Electronic
- EDM
- House
- Jazz
- Acoustic
- Podcast
- Instrumental
- Experimental
16 character profiles
- Transparent
- Modern
- Warm
- Punch
- Open
- Wide
- Deep
- Clean
- Loud
- Club
- Radio
- Streaming
- Analog
- Cinematic
- Lo-Fi
- Aggressive
Details
- Upload
- WAV, AIFF, FLAC, MP3 or Ogg, 44.1 to 192 kHz
- You get
- 24-bit WAV at your track’s sample rate, plus MP3 320
- Preview
- Free 30-second before and after, from the loudest part of your track
- Metering
- ITU-R BS.1770-4 / EBU R128, loudness range per EBU Tech 3342, true peak
- Processing
- 10 stages, 33 profiles, 8 loudness targets, intensity 0–100
- Your audio
- You keep all rights. Unpaid audio is deleted after 3 days, paid audio after 30
- More than 3,700 automated checks of the DSP, metering and Auto Master, plus memory and address-sanitizer runs with zero reports
Created by Daryl Boothe. Loudness targets are working targets, not platform rules.