Patent Number: 6,307,941

Title: System and method for localization of virtual sound

Abstract: A system and method for providing improved virtual sound images. One or more spatial cues of an audio signal may be modulated within a described range to increase the clarity and perceived localization of a virtual sound image. Interaural time delay, interaural intensity difference and/or spectra may be varied at below the "just noticeable level" to cause the virtual source location to move slightly relative to the listener's head. Such variation assists the listener's auditory system in filtering out ambiguous spatial cue information from the audio signal. The resulting virtual sound image has a larger sweet spot and is less sensitive to head movement.

Inventors: Tanner, Jr.; Theodore Calhoun (Menlo Park, CA), Lester, III; James Patrick (Los Gatos, CA)

Assignee: Desper Products, Inc.

International Classification: H04S 1/00 (20060101); H04R 005/00 ()

Expiration Date: 10/23/2018