FREEDESKTOP SOUND THEME MAILING LIST: https://tango.0pointer.de/mailman/listinfo/libcanberra-discuss LICENSES AND ORIGINS: gnome-audio Andreas Karlsson under the Creative Commons - Attribution-ShareAlike 2.0 Martyn Clement under the Creative Commons - Attribution-ShareAlike 2.0 Ivica Ico Bukvic (SlipStreamScapes) under the Creative Commons - Attribution 3.0 Unported See the packages' README for details. Ekiga Damien Sandras under GPLv2 KDE The KDE developers under LGPLv2 Pidgin/Purple The Pidgin developers under GPLv2 ALSA The ALSA developers under GPLv2 Berklee http://wiki.laptop.org/go/Sound_samples#OLPC_Samples_from_31_Music_Synthesis_Alumni_from_Berklee Creative Commons - Attribution 3.0 Unported Feather Sound Set http://kde-look.org/content/show.php/Feather+Sound+Set?content=90916 'glh Pimenta' under Artistic License Borealis Sound Theme http://www.kde-look.org/content/show.php?content=12584 Ivica Ico Bukvic under Artistic License ITW Sounds http://www.kde-look.org/content/show.php/ITW+Sounds?content=98034 Ingo Wolfgarten under GPL Ubuntu's GNOME Audio Theme http://www.canonical.com Nathaniel McCallum under Creative Commons - Attribution-ShareAlike RULES: Similar to those defined by gnome-audio, quoting Elliot Lee: The criteria for sound inclusion: . No licensing issues . Appropriate length . Shorter than 1 second for any sound that denotes a specific event . Shorter than 5 seconds for a background sound (basically, startup/shutdown) . Appropriate sound . Volume . Normalized between samples . Spectral range . No extremes . Good taste . KISS . General common sense (hah!) Of course, in addition to this the Theming Spec not only requires normalized sounds, but those with with good perceived loudness as described in: http://replaygain.hydrogenaudio.org/calculating_rg.html PUT TOGETHER BY: Lennart Poettering, 2008, 2009 William Jon McCann, 2008