 If sounds are not usually experienced to travel, then unless auditory experience is illusory with respect to the apparent locations of sounds, sounds themselves do not travel. Sounds thus are not identical with and do not supervene locally upon the waves, since waves travel (Pasnau 1999). Several philosophers have argued on these and related grounds that sounds are located distally, near their sources (Pasnau 1999, Casati and Dokic 2005, O’Callaghan 2007). On this view, pressure waves bear information about sounds and are the proximal causes of auditory experiences, but are not identical with sounds.