The project aims to develop a normalization plugin for the KDE media
It is composed of two parts, an Arts effect that handles the actual
normalization of the played samples, and a Noatun plugin, that reads
the relative volume adjustments and passes them to the effect. There
are two ways the plugin can retrieve the relative volume adjustments:
it looks for the respective mp3 id3v2 tags or ogg tags which can be
set by tools like normalize
it runs these tools itself and stores the results in the playlist
item's meta data. Thus the files won't be changed.
For ogg vorbis normalization to work you need the latest vorbisgain version
For mp3 or wav normalization you need the normalize
Make sure to install the package under the same prefix as artsd
otherwise arts will not find the NoatunNormalize effect.
If there is popular demand for it I would try to remove the
dependency on the external programs and integrate them into the
Scott Wheeler's TagLib must be patched to provide correct reading
of RVA2 id3v2 mp3 tags. See bug #95545.