Stereophonic acoustic echo cancellation employing selective-tap adaptive algorithms

Stereophonic acoustic echo cancellation has generated much interest in recent years due to the nonuniqueness and misalignment problems that are caused by the strong interchannel signal coherence. In this paper, we introduce a novel adaptive filtering approach to reduce interchannel coherence which is based on a selective-tap updating procedure. This tap-selection technique is then applied to the normalized least-mean-square, affine projection and recursive least squares algorithms for stereophonic acoustic echo cancellation. Simulation results for the proposed algorithms have shown a significant improvement in convergence rate compared with existing techniques.

[1]  Jacob Benesty,et al.  Acoustic signal processing for telecommunication , 2000 .

[2]  Patrick A. Naylor,et al.  THE USE OF PARTIAL UPDATE SCHEMES TO REDUCE INTER-CHANNEL COHERENCE IN ADAPTIVE STEREOPHONIC ACOUSTIC ECHO CANCELLATION , 2003 .

[3]  Satoru Emura,et al.  Enhanced frequency-domain adaptive algorithm for stereo echo cancellation , 2002, 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[4]  Kutluyil Dogancay,et al.  Adaptive filtering algorithms with selective partial updates , 2001 .

[5]  Patrick A. Naylor,et al.  Reducing inter-channel coherence in stereophonic acoustic echo cancellation using partial update adaptive filters , 2004, 2004 12th European Signal Processing Conference.

[6]  Patrick A. Naylor,et al.  A short-sort M-Max NLMS partial-update adaptive filter with applications to echo cancellation , 2003, 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)..

[7]  Khaled A. Mayyas.  Stereophonic acoustic echo cancellation using lattice orthogonalization , 2002, IEEE Trans. Speech Audio Process..

[8]  Jont B. Allen,et al.  Image method for efficiently simulating small‐room acoustics , 1976 .

[9]  Lester A. Gerhardt,et al.  Adaptive digital filters , 1973, CDC 1973.

[10]  Andy W. H. Khong,et al.  Affine projection and recursive least squares adaptive filters employing partial updates , 2004, Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004..

[11]  Scott C. Douglas,et al.  Adaptive filters employing partial updates , 1997 .

[12]  Tyseer Aboulnasr,et al.  Complexity reduction of the NLMS algorithm via selective coefficient update , 1999, IEEE Trans. Signal Process..

[13]  Patrick A. Naylor,et al.  Alternating fixed-point algorithm for stereophonic acoustic echo cancellation , 2002 .

[14]  André Gilloire,et al.  Using auditory properties to improve the behaviour of stereophonic acoustic echo cancellers , 1998, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181).

[15]  Shoji Makino,et al.  Stereo projection echo canceller with true echo path estimation , 1995, 1995 International Conference on Acoustics, Speech, and Signal Processing.

[16]  Patrick A. Naylor,et al.  Application of the leaky extended LMS (XLMS) algorithm in stereophonic acoustic echo cancellation , 1998, Signal Process..

[17]  Jacob Benesty,et al.  Stereophonic acoustic echo cancellation using nonlinear transformations and comb filtering , 1998, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181).

[18]  Gerhard Schmidt,et al.  Acoustic echo control. An application of very-high-order adaptive filters , 1999, IEEE Signal Process. Mag..

[19]  Anthony G. Constantinides,et al.  Time-varying allpass filters using spectral-shaped noise for signal decorrelation in stereophonic acoustic echo cancellation , 2002, 2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628).

[20]  Ioannis Pitas,et al.  Fast algorithms for running ordering and max/min calculation , 1989 .

[21]  Jacob Benesty,et al.  A better understanding and an improved solution to the specific problems of stereophonic acoustic echo cancellation , 1998, IEEE Trans. Speech Audio Process..