Subject: Re: Inverted phase at each ear From: Rebecca Mercuri <mercuri(at)GRADIENT.CIS.UPENN.EDU> Date: Thu, 6 Aug 1998 13:20:07 -0400This is not unique and has been written up in the literature (tho I don't have any references at hand). The effect is that certain frequences induce the perception of 3D placement, yes? A number of manufacturers exploit this in their 3D audio devices in order to create a pseudo-3D effect. Hope this helps, Rebecca Mercuri McGill is running a new version of LISTSERV (1.8c on Windows NT). Information is available on the WEB at http://www.mcgill.ca/cc/listserv