Copy from mainstream bug report. Stellarium can reproduce sound (and video) via Qt's phonon but not on all possible hardware. This feature was introduced for real planetariums for demonstration of educational programs, and, of course, sound support doesn't related to "sounds of stars". Right now Stellarium doesn't support multiwave universe (e.g. optical + x-ray + IR + radio layers) and maximum, which we can given for users - reduce range of frequence for signals from some pulsars.
Technically I guess in binary linux distros it should be two packages: stellarium - default binary package for Stellarium, without multimedia support stellarium-mms - Stellarium binary package with multimedia support, which should replace stellarium package. -- With best regards, Alexander
