Patent ID: 7158642
Filing Date: 2007-01-02
Classification: H04R,H04S

Abstract:
1. A method for providing a three-dimensional sound space to a listener, comprising the steps of: providing a sound signal; driving a left speaker with the sound signal, wherein the left speaker is located in close proximity to the left ear of the listener wherein the left ear is not isolated such that external sounds are allowed to impinge upon the pinna of the left ear; driving a right speaker with the sound signal, wherein the right speaker is located in close proximity to the right ear of the listener wherein the right ear is not isolated such that external sounds are allowed to impinge upon the pinna of the right ear; driving a central speaker with the sound signal, wherein the central speaker is located relatively distant from the listener such that the central speaker, the left speaker, and right speaker, form an isosceles triangle with the central speaker forming the apex of the isosceles triangle; allowing the listener to individually adjust the sound pressure levels of the left and right speakers relative to the central speaker to achieve a phantom three-dimensional sound space created by the central, left and right speakers, wherein adjusting the sound pressure levels of the left and right speakers control the listener's perception of the virtual movement of phantom sound source image within the sound space created by the central, left and right speakers.