[LAU] Normalizing Audio Levels using RMS

[Raffaele]

2009/4/15 <hollunder at gmx.at>

> On Wed, 15 Apr 2009 10:37:29 +0200
> Raffaele <raffaele.morelli at gmail.com> wrote:
>
> > 2009/4/14 Viktor Mastoridis <viktor at mastoridis.co.uk>
> >
> > >
> > > Hi Linux Audio Geeks
> > >
> > > In my musical prehistory, while I was on Windows, I used to use a
> > > program called SoundForge that had one very useful feature:
> > > normalizing audio levels with RMS, even using the Equal Loudness
> > > Contour
> > >
> > > For a whole year I am struggling now to find something similar on
> > > Linux, without much success.
> > >
> > > Any help/hints will be much appreciated.
> > >
> > > Viktor
> > >
> >
> > Hi,
> >
> > if the the goal is to have a sound file play as loud as possible I
> > would use Jamin, so you can take care about frequencies, if needed.
> >
> > If you are going to normalize a telephone conversation maybe you
> > don't need such accuracy.
> >
> > regards
> > -r
>
> I don't really see how RMS can be that useful, at least not when you
> try to get stuff as loud as possible. You still have to watch for peaks
> because of clipping.


Frequencies compression (as peak one) allows you boost the overall volume of
your track which in turns increases its loudness <=> RMS.
Of course you must take care of peaks but meters (and ears) are your
friends.

http://jamin.sourceforge.net/en/loudness.html

regards
-r
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