NDLI: On the algorithm and implementation of an acoustic echo canceller

Content Provider	IEEE Xplore Digital Library
Author	Hu Chun Feng Zhao Zhengang Wang DeJun
Copyright Year	1996
Description	Author affiliation: Dept. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China (Hu Chun Feng)
Abstract	Because the impulse response of an acoustic echo path may be several hundred milliseconds long, acoustic echo cancellation is a long-standing problem and hasn't been solved effectively. In order to solve this problem, in this paper an acoustic echo canceller is presented and a new self-orthogonalizing alternative constrained partitioned frequency-domain block LMS (PBFLMS) algorithm is put forward. This algorithm has good convergence ability, small misadjustment, low computation complexity and small delay. In addition, according to the application of the acoustic echo canceller, this algorithm is modified. Finally the whole echo canceller is implemented by using a single TMS320C30 processor in the ATD-C30 simulator and satisfying results are acquired.
Starting Page	657
Ending Page	660
File Size	394183
Page Count	4
File Format	PDF
ISBN	0780329120
DOI	10.1109/ICSIGP.1996.567349
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-10-18
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Echo cancellers Adaptive filters Finite impulse response filter Signal processing algorithms IIR filters Nonlinear filters Partitioning algorithms Least squares approximation Telephony Microphones
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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