Tetsuya SHIMAMURA


Pitch Determination from Bone Conducted Speech
M. Shahidur RAHMAN Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/01/01
Vol. E99-D  No. 1  pp. 283-287
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
bone conducted speechair conducted speechpitch frequencylaryngograph outputpitch reference
 Summary | Full Text:PDF(682.7KB)

Audio Watermarking Based on Eigenvalue Decomposition
Pranab KUMAR DHAR Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/12/01
Vol. E97-A  No. 12  pp. 2658-2661
Type of Manuscript:  LETTER
Category: Cryptography and Information Security
Keyword: 
audio watermarkingcopyright protectioneigenvalue decompositionquantization
 Summary | Full Text:PDF(80.7KB)

Noise Spectrum Estimation Based on SNR Discrepancy for Speech Enhancement
Atanu SAHA Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2014/02/01
Vol. E97-D  No. 2  pp. 373-377
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
speech enhancementnoise estimationSNR discrepancyspeech presence probability
 Summary | Full Text:PDF(185.2KB)

Identification of ARMA Speech Models Using an Effective Representation of Voice Source
M. Shahidur RAHMAN Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/05/01
Vol. E90-D  No. 5  pp. 863-867
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
ARMA modelinglinear predictionleast square identificationglottal waveformeffective voice source
 Summary | Full Text:PDF(513.7KB)

Speech Analysis Based on Modeling the Effective Voice Source
M. Shahidur RAHMAN Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/03/01
Vol. E89-D  No. 3  pp. 1107-1115
Type of Manuscript:  Special Section PAPER (Special Section on Statistical Modeling for Speech Processing)
Category: Speech Analysis
Keyword: 
glottal waveformeffective voice sourcelinear predictionleast square methodsystem identification
 Summary | Full Text:PDF(1.2MB)

Coefficients--Delay Simultaneous Adaptation Scheme for Linear Equalization of Nonminimum Phase Channels
Yusuke TSUDA Jonah GAMBA Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/01/01
Vol. E89-A  No. 1  pp. 248-259
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
adaptive channel equalizerlinear transversal filteroptimum delaynonminimum phase channelchannel estimationLevinson-Trench algorithm
 Summary | Full Text:PDF(730.8KB)

Equalizer-Aided Time Delay Tracking Based on L1-Normed Finite Differences
Jonah GAMBA Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/04/01
Vol. E88-A  No. 4  pp. 978-987
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
time delay estimationadaptive Butler-Cantoni equalizerdelay optimizationL1-normfinite difference
 Summary | Full Text:PDF(497KB)

Spectrum Estimation by Noise-Compensated Data Extrapolation
Jonah GAMBA Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/03/01
Vol. E88-A  No. 3  pp. 702-711
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
spectrum estimationnoise varianceYule-Walker equationsautoregressive process
 Summary | Full Text:PDF(817.1KB)

A New Method of Noise Variance Estimation from Low-Order Yule-Walker Equations
Jonah GAMBA Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/01/01
Vol. E87-A  No. 1  pp. 270-274
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
noise varianceYule-Walker equationsautoregressive processsubspace method
 Summary | Full Text:PDF(163.7KB)

Noise Estimation Using High Frequency Regions for Spectral Subtraction
Junpei YAMAUCHI Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/03/01
Vol. E85-A  No. 3  pp. 723-727
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
spectral subtractionnoise estimationhigh-frequency regionsnon-stationary noise condition
 Summary | Full Text:PDF(735.3KB)

Amplitude Banded RLS Approach to Time Variant Channel Equalization
Tetsuya SHIMAMURA Colin F. N. COWAN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/11/01
Vol. E84-A  No. 11  pp. 2946-2949
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
time variant channeldecision feedback equalizerRLS algorithmamplitude banded technique
 Summary | Full Text:PDF(164.3KB)

Equalisation of Time Variant Multipath Channels Using Amplitude Banded LMS Algorithms
Tetsuya SHIMAMURA Colin F. N. COWAN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/03/01
Vol. E84-A  No. 3  pp. 802-812
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
time variant multipath channellinear transversal equaliserLMS algorithmamplitude banded technique
 Summary | Full Text:PDF(781KB)

A Fast Converging RLS Equaliser
Tetsuya SHIMAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/02/01
Vol. E84-A  No. 2  pp. 675-680
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
equalisertransversal filterRLS algorithmchannel estimatorfast convergence
 Summary | Full Text:PDF(210.1KB)

An ARMA Prefiltering Approach to Adaptive Equalization
Tetsuya SHIMAMURA Tomoyuki TAKADA Jouji SUZUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/10/25
Vol. E83-A  No. 10  pp. 2035-2039
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
prefilterinstrumental variable algorithmadaptive IIR equalizer
 Summary | Full Text:PDF(258.5KB)