Paper Info
Title
Sound Field Reproduction System Using Simultaneous Perturbation Method
Abstract
In this paper, we propose a novel sound field reproduction system that uses the simultaneous perturbation (SP) method as well as two fast convergence techniques. Sound field reproduction systems that reproduce any desired signal at listener's ear generally use fixed preprocessing filters that are determined by the transfer functions from loudspeakers to control points in advance. However, control point movement results in severe localization errors. Our solution is a sound field reproduction system, based on the SP method, which uses only an error signal to update the filter coefficients. The SP method can track all control point movements but suffers from slow convergence. Hence, we also propose two methods that offer improved convergence speeds. One is a delay control method that compensates the delay caused by back-and-forth control point movements. The other is a compensation method that offsets the localization error caused by head rotation. Simulations demonstrate that the proposed methods can well track control point movements while offering reasonable convergence speeds.
Year
DOI
Venue
2008
10.1093/ietfec/e91-a.3.801
IEICE Transactions
Keywords
Field
DocType
convergence speed,simultaneous perturbation method,sound field reproduction system,delay control method,compensation method,back-and-forth control point movement,control point movement result,fast convergence technique,sp method,control point movement,head related transfer function,transfer function,reproductive system
Convergence (routing),Head-related transfer function,Control point,Control theory,Preprocessor,Transfer function,Loudspeaker,Mathematics,Perturbation (astronomy),Filter design
Journal
Volume
Issue
ISSN
E91-A
3
0916-8508
Citations 
PageRank 
References 
0
0.34
2
Authors
3
Name
Order
Citations
PageRank
Kazuya Tsukamoto100.34
Yoshinobu Kajikawa29334.15
Yasuo Nomura34711.75