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- ✓ 1 mix from stems
- ✓ 1 downloadable MP3 master
- ✓ Up to 12 stems per song
- ✓ 1 AudioChat AI "Analyze and adjust"
- ✓ Presets and AI recommendation
MixingMusic.AI audio ranges
The loudness, true peak and dynamic range limits used by the mastering and the mixer, and what we measured on export. This is data from our own test bench, published so it can be verified.
Design limits
- True peak-1 dBTP or lower, measured with 4x oversampling
- Sample ceiling-1.2 dBFS in mastering
- Mastering loudness targetsNatural -16 LUFS · Balanced -14 LUFS · Intense -11 LUFS
- Mixer target-16 integrated LUFS without exceeding -1 dBTP
- Output formats24-bit WAV and 320 kbps MP3
Measured masters
Synthetic 30 s test song with low dynamic range (source PLR 6.6 dB). True peak stays far from the ceiling because the master only gains what it needs to reach the requested LUFS.
| Preset | Intent | Target LUFS | Measured LUFS | True peak dBTP | PLR dB |
|---|---|---|---|---|---|
| Neutral | Natural | -16 | -15.98 | -10.10 | 5.9 |
| Neutral | Balanced | -14 | -13.98 | -8.10 | 5.9 |
| Neutral | Intense | -11 | -10.98 | -5.10 | 5.9 |
| Pop | Natural | -16 | -15.99 | -9.91 | 6.1 |
| Pop | Balanced | -14 | -13.99 | -7.91 | 6.1 |
| Pop | Intense | -11 | -10.99 | -4.91 | 6.1 |
| Rock | Natural | -16 | -15.81 | -10.17 | 5.6 |
| Rock | Balanced | -14 | -13.79 | -8.15 | 5.6 |
| Rock | Intense | -11 | -10.99 | -5.35 | 5.6 |
Measured mix exports
Four stems (drums, bass, keys, vocal). "Hot": stems already mastered whose sum passes 0 dBFS. "Quiet": the same stems 13 dB lower. LRA is loudness range in LU.
| Stems | Preset | Measured LUFS | True peak dBTP | PLR dB | LRA LU |
|---|---|---|---|---|---|
| Hot (sum +6.0 dBTP) | Pop | -14.8 | -4.7 | 10.1 | 3.0 |
| Hot (sum +6.0 dBTP) | Rock | -15.1 | -5.7 | 9.4 | 2.7 |
| Hot (sum +6.0 dBTP) | Classical | -14.5 | -1.1 | 13.4 | 5.3 |
| Hot (sum +6.0 dBTP) | Neutral | -14.1 | -1.0 | 13.1 | 5.3 |
| Quiet (sum -6.8 dBTP) | Pop | -14.8 | -3.9 | 10.9 | 4.1 |
| Quiet (sum -6.8 dBTP) | Rock | -15.1 | -5.0 | 10.1 | 3.8 |
| Quiet (sum -6.8 dBTP) | Classical | -14.5 | -1.2 | 13.3 | 5.2 |
| Quiet (sum -6.8 dBTP) | Neutral | -14.1 | -1.0 | 13.1 | 5.3 |
Public platform references
Reference values the platforms publish; they can change. They adjust playback volume.
| Platform | Reference loudness | True peak |
|---|---|---|
| Spotify | -14 LUFS | -1 dBTP |
| Apple Music | -16 LUFS | -1 dBTP |
| YouTube | About -14 LUFS | -1 dBTP |
Methodology
- Integrated loudness per ITU-R BS.1770 (K-weighting, relative gate).
- True peak with 4x oversampling and 48-tap sinc interpolation in mastering.
- PLR is true peak minus integrated LUFS; LRA is computed on 3 s short-term windows.
- Measurements were taken with an independent script (Python, NumPy and SciPy) on the WAV files exported by the app, not on the numbers the interface shows.
What we do not claim
This table does not compare MixingMusic.AI with other services or say it sounds better than them: we have not measured them. With real material the final dynamic range depends on each song. Highly compressed mix presets (Pop and Rock) reduce dynamic range on purpose.
Questions about the ranges
What is the true peak ceiling at MixingMusic.AI?
Masters and mixes are delivered with a true peak (measured with 4x oversampling) of -1 dBTP or lower. A master is marked ready when the measurement is -0.95 dBTP or lower.
What LUFS does mastering reach?
Natural aims at -16 integrated LUFS, Balanced at -14 and Intense at -11. On the test bench the results landed within 0.2 LUFS of the target.
What loudness does the mixer export at?
It normalizes toward -16 LUFS without exceeding -1 dBTP. On the test bench the mixes landed between -14.1 and -15.1 LUFS, and the export screen shows the measured value.
Is it the best sound and dynamic range on the market?
We do not claim that. We publish limits and our own measurements so you can verify them; we have not measured other services and the result depends on the source material.