Basis: Working playback reference.
Amazon Music exposes a Loudness Normalization playback option but does not publish -14 LUFS as a delivery requirement. These checks validate the APU product recipes on deterministic stereo material; they do not certify platform or broadcaster acceptance.
Sources: Amazon Music Loudness Normalization
| 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 | -14.04 LUFS | inside | -4.41 dBFS | inside | -4.13 dBTP | inside | 7.88 dB | 8.22 dB | +0.34 dB | 2 |
| Dynamic piano neutral - Marko Maksimovic | -14.65 LUFS | inside | -2.01 dBFS | inside | -2.01 dBTP | inside | 16.90 dB | 13.43 dB | -3.46 dB | 2 |
| Instrumental groove hot - Nova Notion | -14.04 LUFS | inside | -3.02 dBFS | inside | -2.77 dBTP | inside | 13.10 dB | 13.05 dB | -0.06 dB | 2 |
| Amazon Music Stereo Reference stereo stress sequence | -14.43 LUFS | inside | -2.01 dBFS | inside | -2.01 dBTP | inside | 17.83 dB | 12.90 dB | -4.93 dB | 2 |