--- Matt Zimmerman <mdz@debian.org> wrote:> Date: Thu, 29 Mar 2001 22:05:48 -0500
> From: Matt Zimmerman <mdz@debian.org>
> To: flac-dev@lists.sourceforge.net
> CC: Josh Coalson <xflac@yahoo.com>
> Subject: Re: [Flac-dev] Normalize?
>
> On Thu, Mar 29, 2001 at 01:39:32PM -0800, Josh Coalson wrote:
>
> > --- "Jesse W. Hathaway" <jwhathaw@uiuc.edu> wrote:
> > > I was looking around in the documentation of other lossless
> decoders
> > > and noticed that Monkey's Audio supports a normalize feature,
the
> > > ability to play back different music types and keep them in the
> same
> > > volume range. This seems like a nice option to have when playing
> an
> > > archived cd collection. My question is whether this could just
> be
> > > done
> > > at the plugin level or if it would be better to include it in the
> > > format. Maybe before 1.0 :).
> > >
> > I think normalization should go in the plugin but I was toying with
> > the idea of adding some metadata that includes the peak level so it
> > would be easier for the plugin to normalize. Now that I've
thought
> > about it I think I will add that to the STREAMINFO block.
>
> In fact, xmms already has a volume normalization plugin that works
> for any
> output plugin. It works by trying to adjust the output level to a
> user-specified target. It can't maximize the output level over a
> group of
> songs, as that would require fully decoding and analyzing each song
> before
> playing to determine the peak volume level, but it works reasonably
> well.
>
> It would be nice if the XMMS output plugin spec included a hook to
> retrieve the
> peak volume level from the output plugin; this could then be used by
> the volume
> normalizer effect plugin. I think this would be the best of both
> worlds, but
> I don't know how flexible the XMMS folks are about changing the
> output plugin
> interface.
>
> --
> - mdz
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