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Is it correct that the integrated LUFS is based on the momentary loudness rather than individual samples? BTW, I've have already implemented an option to select a source (either individual samples, momentary, or even short-term) to use for the integrated LUFS calculation on the loudness (LUFS) meter part of my own peakmeter so this can be tested. 2001:448A:3070:DF97:6CA1:FCBB:A642:E2B2 (talk) 03:57, 21 November 2024 (UTC)[reply]
The response of a moving-coil VU meter (black line) compared to an electronic PPM indicator (grey area) of a drum beat. Level is in dB and time is in seconds Audio samples have pressure amplitudes but do not individually exhibit Loudness that must be calculated by summation of energy in critical bands. See the EBU reference (EBU R 128) LOUDNESS NORMALISATION AND PERMITTED MAXIMUM LEVEL OF AUDIO SIGNALS. An estimate of momentarily perceived peak loudness in broadcasting is meaningful only if it integrates over long enough time to properly resolve the critical band containing the lowest audio frequency component that may be 20 Hz. Note that many broadcasting sound engineers prefer the ballistic response of VU meters with which they are familiar, see illustration. Philvoids (talk) 11:46, 21 November 2024 (UTC)[reply]
