- How to calculate loudness in Matlab?
- How is loudness range calculated?
- How is integrated loudness calculated?
How to calculate loudness in Matlab?
Measure Loudness and Sharpness of Stationary Signals
fs = 48e3; dur = 5; pnoise = 2*pinknoise(dur*fs); wnoise = rand(dur*fs,1) - 0.5; wnoise = wnoise*sqrt(var(pnoise)/var(wnoise)); Call acousticLoudness using the default ISO 532-1 (Zwicker) method and no output arguments to plot the loudness of the pink noise.
How is loudness range calculated?
Specifically, the range of the distribution of loudness levels is determined by estimating the difference between a low and a high percentile of the distribution.
How is integrated loudness calculated?
loudness — Integrated loudness (LUFS)
The ITU-R BS. 1770-4 and EBU R 128 standards define the integrated loudness. The algorithm computes the loudness by breaking down the audio signal into 0.4-second segments with 75% overlap. If the input signal is less than 0.4 seconds, loudness is returned empty.