Invention Grant
- Patent Title: Method and system for creating three-dimensional spatial audio
- Patent Title (中): 用于创建三维空间音频的方法和系统
-
Application No.: US12253753Application Date: 2008-10-17
-
Publication No.: US08391500B2Publication Date: 2013-03-05
- Inventor: Jens Hannemann , Kevin D. Donohue
- Applicant: Jens Hannemann , Kevin D. Donohue
- Applicant Address: US KY Lexington
- Assignee: University of Kentucky Research Foundation
- Current Assignee: University of Kentucky Research Foundation
- Current Assignee Address: US KY Lexington
- Agency: Stites & Harbison PLLC
- Agent Jeffrey A. Haeberlin
- Main IPC: H04R5/00
- IPC: H04R5/00 ; H04R5/02

Abstract:
A system and method for rendering a virtual sound source using a plurality of speakers in an arbitrary arrangement includes expanding a wave field of the virtual sound source and a composite wave field generated by the plurality of speakers into multi-pole expansions, and equating the multi-pole expansions to each other to form a continuous equation. A set of constraints is applied to the continuous equation that minimize an error in a sweet spot region resulting in a linear system of equations. The linear system of equations is solved using singular-value decomposition to arrive at a pseudo-inverse representing a multi-dimensional transfer function between the virtual sound source and the plurality of speakers. The multi-dimensional transfer function is then applied to a signal of the virtual sound source to render the virtual sound source in the sweet spot region using the plurality of speakers in the arbitrary arrangement.
Public/Granted literature
- US20100098274A1 METHOD AND SYSTEM FOR CREATING THREE-DIMENSIONAL SPATIAL AUDIO Public/Granted day:2010-04-22
Information query