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ebur128 error

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  • oeriksen

    • Dec 2006
    • 7

    ebur128 error

    I've been using the ebur128 dsp for a little while now.
    Today I got an error message when using it on a file:
    "Error applying normalisation gain (would result in clipping): Gain=-24.32dB, Maximum True Peak=-1.00LUFS, True Peak=0.00LUFS [clDSP::NormaliseFile]"
    I know what clipping is so I sort of understand the message, but is it something (a parameter?) I can use to make it use "best effort"?
    This convertion is automated so its important that it is successful "no matter what".
  • Spoon
    Administrator
    • Apr 2002
    • 44509

    #2
    Re: ebur128 error

    What is the source file? a floating point wave?

    Gain=-24.32dB

    this is a big reduction, now I did not personally work on ebur code, but it seems odd to me.
    Spoon
    www.dbpoweramp.com

    Comment

    • oeriksen

      • Dec 2006
      • 7

      #3
      Re: ebur128 error

      The source file is an BWF (Broadcast Wave Format) 256kbit. Its quite large (90 minutes) and is a recording, a mix of music and speech. I havn't checked the source file yet so I cannot comment the big reduction.

      Comment

      • Spoon
        Administrator
        • Apr 2002
        • 44509

        #4
        Re: ebur128 error

        We will be working in this area, perhaps next week so will look then.
        Spoon
        www.dbpoweramp.com

        Comment

        • jock1984

          • Oct 2012
          • 1

          #5
          Re: ebur128 error

          Originally posted by oeriksen
          The source file is an BWF (Broadcast Wave Format) 256kbit. Its quite large (90 minutes) and is a recording, a mix of music and speech. I havn't checked the source file yet so I cannot comment the big reduction.
          Just what I needed, I&*65279; was pondering similar thoughts the other day.

          Comment

          • daren
            dBpoweramp Enthusiast

            • Apr 2002
            • 153

            #6
            Re: ebur128 error

            Hi,

            I've looked into this error in the loudness normalisation DSP.

            The gain measurement shown in the message was incorrect (it was in fact the loudness measured in the audio file).

            The DSP has been modified to clamp the gain to an acceptable level, so that it doesn't clip the audio. It also gives an information message at the end of the conversion to let you know that it adjusted the gain to prevent clipping.

            The new version will be available in the next few days.

            Best regards,
            Daren.

            Comment

            • Spoon
              Administrator
              • Apr 2002
              • 44509

              #7
              Re: ebur128 error

              Now fixed:

              Change Log: Added option to ReplayGain DSP effect to write iTunNORM tag from generated Replaygain value. EBU R128 ReplayGain calculation option added (to both Volume Normalize and ReplayGain DSP effects). Option on Maximum Length to Limit to a % of original length. ID Tag Manipulation added maximum album art (KB) size
              Spoon
              www.dbpoweramp.com

              Comment

              • oeriksen

                • Dec 2006
                • 7

                #8
                Re: ebur128 error

                Didn't see this before now. Testet with a file that failed yesterday, was successful with no errors now. Thank you!

                Comment

                Working...

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