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Thread: Possible to adjust track gain based on ebur128 LKFS measurement?

  1. #1

    Join Date
    Feb 2008
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    39

    Possible to adjust track gain based on ebur128 LKFS measurement?

    Hi. So I have a .bat file on Windows 7 that runs a bunch of different audio manipulations on any track that I send it.
    I would like to add the following step, if possible:

    Adjust the gain of a track such that that the peak of the track is -10 LKFS according to an ebuR128 evaluation.

    In other words, I want to permanently adjust a track such that the loudest part is no louder and no softer than -10 LKFS.

    Can I accomplish this with dbpoweramp reference version? If so, how?

    Thanks

    --jay

  2. #2
    Administrator
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    Apr 2002
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    Re: Possible to adjust track gain based on ebur128 LKFS measurement?

    Yes, on the EBU settings page you change the reference loudness volume, for Replaygain >> Advanced >>LUFS Target Volume. Then run a 2nd batch with ReplayGain (Apply)

  3. #3

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    Re: Possible to adjust track gain based on ebur128 LKFS measurement?

    Quote Originally Posted by Spoon View Post
    Yes, on the EBU settings page you change the reference loudness volume, for Replaygain >> Advanced >>LUFS Target Volume. Then run a 2nd batch with ReplayGain (Apply)
    Hi Spoon, thank you for the quick reply.
    1. where do I access the "EBU settings page" to change reference loudness volume?
    2. will this technique adjust the gain of the track for Integrated Loudness or for Peak Loudness? I am trying to set Peak loudness to -10 LUFS.

    --jay

  4. #4
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    Re: Possible to adjust track gain based on ebur128 LKFS measurement?

    Add the DSP Effect 'ReplayGain' and click the advanced button.

    Do you want the gain to be written to ID Tags, or the audio to be altered in volume?

  5. #5

    Join Date
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    Re: Possible to adjust track gain based on ebur128 LKFS measurement?

    I'd like the audio to be (permanently) altered in volume.

  6. #6
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    Re: Possible to adjust track gain based on ebur128 LKFS measurement?

    Then use the DSP Effect 'ReplayGain' first, then re-run the batch with 'Replaygain apply'

  7. #7

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    Re: Possible to adjust track gain based on ebur128 LKFS measurement?

    Hi Spoon -- just want to triple confirm something. I am looking to adjust PEAK to be -10 LUFS, *not* average. My understanding of EBUR128 is that it scans an audio track and decides on an average. I want to "look at the track's audio, and set the loudest part of the track to be -10 LUFS, and then everything else is relative below that"

    thanks.

  8. #8
    Administrator
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    Re: Possible to adjust track gain based on ebur128 LKFS measurement?

    Use the volume normalize DSP, and set the peak to peak option and set the desired volume to -10 dB

  9. #9
    dBpoweramp Guru
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    Re: Possible to adjust track gain based on ebur128 LKFS measurement?

    Jay, I'm a little curious as to why? Setting the peak to -10 dBFS (can't be LUFS, that by definition is an average), will result in many cases in a very low level track. Also, if you are listening to a collection of tracks, the levels to your ear will be all over the place, depending on what processing the track had before you adjust it. Your setting is not a particularly "consumer friendly" one.

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