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#167 Statistics: EBU R128 specifications

open
nobody
None
5
2025-10-26
2011-05-17
GrahamS
No

Hi,
It would be great if we are able to get audio statistics for the EBU R128 specification.

Thanks for your efforts.
Graham

Discussion

  • Ulrich Klauer

    Ulrich Klauer - 2012-01-13

    There are implementations of EBU R.128 available now. I especially like libebur128 (http://github.com/jiixyj/libebur128). It includes a simple scanner application, too.

     

  • ianll

    ianll - 2014-06-08

    This would be very helpful for me too.

     

  • Martin Guy

    Martin Guy - 2024-11-30
     

    Last edit: Martin Guy 2025-10-26

  • Martin Guy

    Martin Guy - 2025-10-26

    This just went into sox_ng in the interrim release 14.6.1+git20251026 at
    https://codeberg.org/sox_ng/sox_ng/releases

    sox_ng in.wav -n stat

    now includes

    EBUR128 True Peak:     0.818931
EBUR128 Momentary:   -30.340801
EBUR128 Short term:  -35.450052
EBUR128 Integrated:  -21.358310

    Those are in Loudness Units relative to Full Scale (LUFS).
    Is that the sort of thing that's wanted, and can someone check that
    the figures it reports are correct? There's 14.6.1+git20251026 at
    https://codeberg.org/sox_ng/sox_ng/releases for testing.

    For True Peak, libebur128 (for it is that which does the calculations) reports
    a value for each channel individually, not overall, so I'm giving the highest
    value that occurs on any channel. Does that sound right?

     

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