Basis: Working playback reference.
Apple leaves mastering loudness to artistic and technical judgment; -16 LUFS is a working Sound Check playback reference, not an Apple delivery target. These checks validate the APU product recipes on deterministic stereo material; they do not certify platform or broadcaster acceptance.
| Exported Clip | Integrated Loudness | LUFS Class | Sample Peak | Sample Peak Class | True Peak | True Peak Class | Source Active-program RMS Range | Output Active-program RMS Range | Active-program RMS Range Change | Channels |
|---|---|---|---|---|---|---|---|---|---|---|
| Pop vocal soft - Chill Winston | -16.04 LUFS | inside | -6.41 dBFS | inside | -6.13 dBTP | inside | 7.88 dB | 8.22 dB | +0.34 dB | 2 |
| Dynamic piano neutral - Marko Maksimovic | -16.27 LUFS | inside | -1.01 dBFS | inside | -1.01 dBTP | inside | 16.90 dB | 13.97 dB | -2.92 dB | 2 |
| Instrumental groove hot - Nova Notion | -16.04 LUFS | inside | -5.02 dBFS | inside | -4.77 dBTP | inside | 13.10 dB | 13.05 dB | -0.06 dB | 2 |
| Apple Music Stereo Reference stereo stress sequence | -16.20 LUFS | inside | -1.01 dBFS | inside | -1.01 dBTP | inside | 17.83 dB | 13.05 dB | -4.78 dB | 2 |