Common-acoustic-poles and zeros modeling using jointly balanced model truncation

Author

Liu, C.J. ; Hsieh, Shih-Fu

Author_Institution

Dept. of Electr. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2009

fDate

14-17 Dec. 2009

Firstpage

436

Lastpage

439

Abstract

We propose a new technique for common-acoustic-poles and zeros (CAPZ) modeling. In 3D sound processing, head-related transfer functions (HRTF´s) record channels´ characteristics from different locations to both ears. Compared to conventional pole/zero models, it is more efficient to model HRTF´s by using CAPZ modeling. Based on balanced model truncation (BMT), jointly BMT is proposed to effectively model a group of HRTF´s using common-poles IIR filters. The simulation result shows the proposed method is superior to the previous Prony and Shanks methods.

Keywords

IIR filters; audio signal processing; poles and zeros; transfer functions; 3D sound processing; IIR filters; common-acoustic-poles and zeros; head-related transfer functions; jointly balanced model truncation; Difference equations; Digital filters; Ear; Eigenvalues and eigenfunctions; Finite impulse response filter; IIR filters; Iterative methods; Poles and zeros; Symmetric matrices; Transfer functions; IIR filters; Nonlinear identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology (ISSPIT), 2009 IEEE International Symposium on

Conference_Location

Ajman

Print_ISBN

978-1-4244-5949-0

Type

conf

DOI

10.1109/ISSPIT.2009.5407536

Filename

5407536