Basis: Official short-form broadcast recommendation.
ATSC A/85:2026-07 specifies -24 LKFS full-program loudness for short-form content without metadata, approximately +/-2 LU measurement tolerance, and -2 dBTP. These checks validate the APU product recipes on deterministic stereo material; they do not certify platform or broadcaster acceptance.
Sources: ATSC A/85:2026-07, ATSC A/85 quick reference
| Learn-pass Integrated LUFS | Locked Delta | Program Integrated LUFS | Program Sample Peak | Program True Peak |
|---|---|---|---|---|
| -23.96 LUFS | -0.04 dB | -23.94 LUFS | -9.44 dBFS | -9.35 dBTP |
| Rendered 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 | -24.02 LUFS | inside | -14.95 dBFS | inside | -14.65 dBTP | inside | 7.88 dB | 9.83 dB | +1.94 dB | 2 |
| Dynamic piano neutral - Marko Maksimovic | -24.40 LUFS | inside | -9.44 dBFS | inside | -9.43 dBTP | inside | 16.90 dB | 15.61 dB | -1.28 dB | 2 |
| Instrumental groove hot - Nova Notion | -23.64 LUFS | inside | -11.10 dBFS | inside | -10.85 dBTP | inside | 13.10 dB | 13.77 dB | +0.66 dB | 2 |
| ATSC A/85 Short-Form Preparation stereo stress sequence | -23.94 LUFS | inside | -9.44 dBFS | inside | -9.35 dBTP | inside | 17.83 dB | 14.50 dB | -3.33 dB | 2 |