Esound

Esound project is an audio mixing server that allows multiple applications to output sound to the same audio device. Development on Esound stopped several years ago, in the hope that someone would write a replacement.

Esound is seriously lacking in features required for a modern desktop environment, particularly for multi-channel audio and audio/video synchronization. However, it is part of the GNOME platform (for a little while longer), so we slavishly continue to maintain it. Please don't laugh at us.

Bugs should be reported at http://bugzilla.gnome.org. It's unlikely that they'll be fixed unless they're regressions from recent versions or accompanied by patches.