Re: [LAU] Gain and clipping wav -> lame

From: Marc Lavallée <marc@email-addr-hidden>
Date: Mon Jul 29 2013 - 02:50:44 EEST

I'm sure it's been answered many times, but here's my question:
For loudness evaluation, how's EBU R128 "better" than ReplayGain?
(Or why use EBU R128 instead of ReplayGain?)
(A link to the suitable InterWeb resource would be appropriate)

B.T.W, there's another EBU R128 utility to normalize audio files:
https://github.com/jiixyj/libebur128
It can add ReplayGain tags to existing mp3 files. Nice!
I add to checkout commit 1c0e8da to avoid linking errors,
as mentioned here:
https://github.com/jiixyj/libebur128/issues/20

--
Marc
Fons Adriaensen <fons@linuxaudio.org> a écrit :
> > I assume the ebumeter output is more for making things sound even
> > (between different pieces) and not directly a tool to max out
> > anything, is that right?
> 
> That is absolutely right. Systems such as EBU-R128 exist because
> it makes perfect sense to make things sound even (avoiding your
> listeners having to adjust the volume all the time), while 'maxing
> out' serves no useful purpose at all - it just destroys the sound
> if taken too far. In other words, such systems exist to *stop* you
> 'maxing out' everything.
> 
> Lame's 'replaygain' meausurement has the same purpose. Note the
> value for the file in your original post: -9.1 dB. That means
> that an intelligent mp3 player will *reduce* the level of this
> file by 9.1 dB when playing it - it is already much too loud.
--
Marc
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Received on Mon Jul 29 12:15:02 2013

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