DocumentCode
786627
Title
Comparison of pole-zero and all-zero modelling of acoustic transfer functions (echo cancellation)
Author
Gudvangen, S.
Author_Institution
R. Holloway & Bedford New Coll., London Univ., UK
Volume
28
Issue
21
fYear
1992
Firstpage
1976
Lastpage
1978
Abstract
Echo cancellation in teleconferencing systems or loud-speaking telephones requires the modelling of acoustic transfer functions of rooms. It might he expected that for reverberant acoustical situations a pole-zero representation would be much more economical than an all-zero one. It is shown that this is not the case.
Keywords
acoustic signal processing; adaptive filters; architectural acoustics; echo suppression; poles and zeros; reverberation; teleconferencing; transfer functions; IIR filters; acoustic transfer functions; adaptive acoustic echo cancellers; all-zero modelling; echo cancellation; loud-speaking telephones; pole zero modelling; reverberant acoustical situations; rooms; teleconferencing systems;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19921267
Filename
170871
Link To Document