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Conference paperWen JYC, Naylor PA, 2007,
Semantic colouration space investigation: Controlled colouration in the bark-sone domain
, IEEE Workshop on Applications of Signal Processing to Audio and Acoutics, Publisher: IEEE, Pages: 89-92 -
Conference paperThomas MRP, Gaubitch ND, Naylor PA, 2007,
Multichannel DYPSA for Estimation of Glottal Closure Instants in Reverberant Speech
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Conference paperThomas MRP, Gaubitch ND, Gudnason J, et al., 2007,
A practical multichannel dereverberation algorithm using Multichannel DYPSA and spatiotemporal averaging
, IEEE Workshop on Applications of Signal Processing to Audio and Acoutics, Publisher: IEEE, Pages: 41-44 -
Conference paperHasan MK, Naylor PA, 2006,
Analyzing effect of noise on LMS-type approaches to blind estimation of SIMO channels: Robustness issue
, ISSN: 2219-5491An analysis of the noise effect on the convergence characteristic of the least-mean-squares (LMS) type adaptive algorithms for blind channel identification is presented. It is shown that the adaptive blind algorithms misconverge in the presence of noise. A novel technique for ameliorating such misconvergence characteristic, using a frequency domain energy constraint in the adaptation rule, is proposed. Experimental results demonstrate that the robustness of the blind adaptive algorithms can be significantly improved using such constraints.
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Conference paperMintandjian L, Naylor PA, 2006,
A study of echo in VoIP systems and synchronous convergence of the μ-law PNLMS algorithm
, ISSN: 2219-5491A recent algorithm, the mu-law PNMLS, introduces a stepsize proportionate to the mu-law of the estimated tap coefficient to cancel sparse echo in telephony over packet-switch networks. It is derived by optimizing the following criterion: fastest convergence is obtained when all coefficients reach the vicinity of their target value at the same time. We present a study of synchronous convergence as introduced in this algorithm. Simulations for a 2-tap adaptive filter illustrate the optimality of mu-law PNLMS. We then compare the performances of this algorithm on multiple echo paths. This comparison shows some restrictions in the applicability of the optimality criterion and highlights possible improvements in robustness for this algorithm.
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Journal articleGaubitch N D, Naylor P A, Ward D B, 2006,
Statistical Analysis of the Autoregressive Modeling of Reverberant Speech
, J. Acoust. Soc. America, Vol: 120, Pages: 4031-4039 -
Conference paperBhunjun V, Brookes D M, Naylor P A, 2006,
Model-based Eigen-spectrum Estimation for Speech Enhancement
, 40th Asilomar Conference on Signals, Systems and Computers -
Conference paperKhong, W H A, Naylor P A, 2006,
Efficient Use of Sparse Adaptive Filters
, 40th Asilomar Conference on Signals, Systems and Computers -
Conference paperAhmad R, Khong, W H A, et al., 2006,
An Extended Normalized Multichannel FLMS Algorithm for Blind Channel Identification
, European Signal Processing Conference -
Conference paperGaubitch N D, Naylor P A, 2006,
THE COMPLEX MULTICHANNEL LMS ALGORITHM FOR ADAPTIVE BLIND SYSTEM IDENTIFICATION
, International Workshop on Acoustic Echo and Noise Control -
Conference paperLin X, Gaubitch N D, Naylor P A, 2006,
Two-stage blind identification of SIMO systems with common zeros
, European Signal Processing Conference -
Conference paperWen, Y-C J, Gaubitch N D, et al., 2006,
EVALUATION OF SPEECH DEREVERBERATION ALGORITHMS USING THE MARDY DATABASE
, International Workshop on Acoustic Echo and Noise Control -
Conference paperHasan M K, Naylor P A, 2006,
Effect of Noise on Blind Adaptive Multichannel Identification Algorithms: Robustness Issue
, European Signal Processing Conference -
Conference paperWen, Y-C J, Naylor P A, 2006,
An evaluation measure for reverberant speech using tail decay modelling
, European Signal Processing Conference -
Conference paperMintandjian L, Naylor P A, 2006,
A study of synchronous convergence in mu-law PNLMS for voice over IP
, European Signal Processing Conference -
Journal articleTalantzis F, Ward DB, Naylor PA, 2006,
Performance analysis of dynamic acoustic source separation in reverberant rooms
, IEEE Transactions on Speech and Audio Processing, Vol: 14, Pages: 1378-1390, ISSN: 1558-7916 -
Journal articleKhong AWH, Naylor PA, 2006,
Stereophonic Acoustic Echo Cancellation Employing Selective-Tap Adaptive Algorithms
, IEEE Trans. Audio, Speech and Language Processing, Vol: 14, Pages: 785-796 -
Journal articleKhong AWH, Benesty J, Naylor PA, 2006,
Stereophonic Acoustic Echo Cancellation: Analysis of the Misalignment in the Frequency Domain
, IEEE Signal Processing Letters, Vol: 13, Pages: 33-36 -
Journal articleKhong AWH, Naylor PA, 2006,
Stereophonic acoustic echo cancellation employing selective-tap adaptive algorithms
, Audio, Speech and Language Processing, IEEE Transactions on, Vol: 14, Pages: 785-796, ISSN: 1558-7916 -
Journal articleBrookes M, Naylor PA, Gudnason J, 2006,
A quantitative assessment of group delay methods for identifying glottal closures in voiced speech
, IEEE Transactions on Audio, Speech, and Language Processing, Vol: 14, Pages: 456-466, ISSN: 1558-7916
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