mesure #r128 avec #FFmpeg
▻http://ffmpeg.org/ffmpeg-filters.html#ebur128
EBU R128 scanner filter. This filter takes an audio stream as input and outputs it unchanged. By default, it logs a message at a frequency of 10Hz with the Momentary loudness (identified by M), Short-term loudness (S), Integrated loudness (I) and Loudness Range (LRA).
Malheureusement :
▻https://ffmpeg.org/trac/ffmpeg/ticket/2144
libavfilter ebur128 loudness inaccuracy, irregular time interval, LFE interference