Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS, VOL. XX, NO. Y, MONTH 2001 1 Self-Localizing Dynamic Microphone Arrays
 

Summary: IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS, VOL. XX, NO. Y, MONTH 2001 1
Self-Localizing Dynamic Microphone Arrays
Parham Aarabi, Member, IEEE
Parham Aarabi is an Assistant Professor in the Edward S. Rogers Sr. Department of Electrical and Computer
Engineering at the University of Toronto, Ontario, Canada. E-mail:parham@ecf.utoronto.edu
August 7, 2002 DRAFT

IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS, VOL. XX, NO. Y, MONTH 2001 2
Abstract
This paper introduces a mechanism for localizing a microphone array when the location of sound
sources in the environment is known. Using the recently proposed Spatial Observability Function based
microphone array integration technique, a maximum likelihood estimator for the correct position and
orientation of the array is derived. This is used to localize and track a microphone array with a known
and xed geometrical structure, which can be viewed as the inverse sound localization problem. Simu-
lations using a 2-element dynamic microphone array illustrate the ability of the proposed technique to
correctly localize and estimate the orientation of the array even in a very reverberant environment. Using
1s male speech segments from three speakers in a 7m by 6m by 2.5m simulated environment, a 30cm
inter-microphone distance, and PHAT Histogram SLF generation, the average localization error was ap-
proximately 3cm with an average orientation error of 19 o . The same simulation con guration but with
4s speech segments results in an average localization error less than 1cm with an average orientation er-

  

Source: Aarabi, Parham - Department of Electrical and Computer Engineering, University of Toronto

 

Collections: Computer Technologies and Information Sciences