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FFmpeg usus ebur128 Colamentum detegit sonum pressionis.

ffmpeg -i input_video.mp4 -filter_complex ebur128=peak=true -f null -

-f null -: Relinquere output et tantum eventus colum ostendunt.

Output similis est

[Parsed_ebur128_0 @ 04d0b100] t: 59.3213    TARGET:-23 LUFS    M: -18.4 S: -18.5     I: -17.9 LUFS       LRA:  14.6 LU  FTPK: -10.5 -10.3 dBFS  TPK:  -6.3  -7.1 dBFS
[Parsed_ebur128_0 @ 04d0b100] t: 59.4213    TARGET:-23 LUFS    M: -18.3 S: -18.7     I: -17.9 LUFS       LRA:  14.6 LU  FTPK: -14.4 -15.2 dBFS  TPK:  -6.3  -7.1 dBFS
[Parsed_ebur128_0 @ 04d0b100] t: 59.5213    TARGET:-23 LUFS    M: -20.1 S: -18.7     I: -17.9 LUFS       LRA:  14.6 LU  FTPK: -13.2 -13.8 dBFS  TPK:  -6.3  -7.1 dBFS
[Parsed_ebur128_0 @ 04d0b100] t: 59.6213    TARGET:-23 LUFS    M: -20.6 S: -18.7     I: -17.9 LUFS       LRA:  14.6 LU  FTPK: -14.2 -14.9 dBFS  TPK:  -6.3  -7.1 dBFS
[Parsed_ebur128_0 @ 04d0b100] t: 59.7213    TARGET:-23 LUFS    M: -21.9 S: -18.6     I: -17.9 LUFS       LRA:  14.5 LU  FTPK:  -9.6 -11.8 dBFS  TPK:  -6.3  -7.1 dBFS
[Parsed_ebur128_0 @ 04d0b100] t: 59.8213    TARGET:-23 LUFS    M: -20.3 S: -18.7     I: -17.9 LUFS       LRA:  14.5 LU  FTPK: -10.6 -10.3 dBFS  TPK:  -6.3  -7.1 dBFS
[Parsed_ebur128_0 @ 04d0b100] t: 59.9213    TARGET:-23 LUFS    M: -20.9 S: -19.0     I: -17.9 LUFS       LRA:  14.5 LU  FTPK: -16.0 -22.1 dBFS  TPK:  -6.3  -7.1 dBFS
frame= 1500 fps=1254 q=-0.0 Lsize=N/A time=00:01:00.01 bitrate=N/A speed=50.2x
video:598kB audio:11248kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[Parsed_ebur128_0 @ 04d0b100] Summary:

  Integrated loudness:
    I:         -17.9 LUFS
    Threshold: -28.7 LUFS

  Loudness range:
    LRA:        14.5 LU
    Threshold: -39.1 LUFS
    LRA low:   -31.4 LUFS
    LRA high:  -16.9 LUFS

  True peak:
    Peak:       -6.3 dBFS

• Integra tantundem: altiore soni pressionis gradum indicat tabellae auditionis.
• Magnitudo momenti: indicat sonum pressionis gradum intra breve tempus (circiter 400ms).
• Magnitudo brevis (brevis-terminus pressionis soni): indicat gradum pressionis soni intra tempus medium (circiter 3 secundis).
• LRA (Loudness Range): sonum pressionis indicat fasciculi audio.
• Verus cacumen: maximum indicat apicem pretii signum audio.
• LUFS (Ludness Unitates ad plenam Scalam pertinentes) unitas est ad metiendi sonum soni, praesertim ut vexillum elatum ad diffundendum et effundendum audio. Propositum est ab Unione telecommunicatione Internationali (ITU) et Unione Europaea radiophonicas (EBU) ad magnitudinem magis quam simplicem virtutem insignem metiendam.
• dBFS (decibels relativa ad plenam Scalam) unitas est ad gradum signum mensurae auditionis, significans valorem decibel relativum ad gradum maximum repraesentabile (Scale plenum) in systemate audio digitali.