PurposePresets - ATSC A/85 Short-Form Preparation - Limiter - Summary

ATSC A/85, US TV Target Reference

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

Limiter render candidates passed. All rows are at or below the ATSC A/85 short-form full-program reference Integrated LUFS ceiling and peak ceilings.

Learn-pass Integrated LUFS	Locked Delta	Program Integrated LUFS	Program Sample Peak	Program True Peak
-22.71 LUFS	-1.29 dB	-24.10 LUFS	-10.97 dBFS	-10.84 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	-31.28 LUFS	inside	-23.38 dBFS	inside	-22.56 dBTP	inside	7.88 dB	7.88 dB	+0.00 dB	2
Dynamic piano neutral - Marko Maksimovic	-25.55 LUFS	inside	-10.96 dBFS	inside	-10.96 dBTP	inside	16.90 dB	16.66 dB	-0.23 dB	2
Instrumental groove hot - Nova Notion	-23.81 LUFS	inside	-11.08 dBFS	inside	-10.83 dBTP	inside	13.10 dB	13.48 dB	+0.37 dB	2
ATSC A/85 Short-Form Preparation stereo stress sequence	-24.10 LUFS	inside	-10.97 dBFS	inside	-10.84 dBTP	inside	17.83 dB	17.83 dB	+0.00 dB	2