Masashi UNOKI


Speech Analysis Method Based on Source-Filter Model Using Multivariate Empirical Mode Decomposition
Surasak BOONKLA Masashi UNOKI Stanislav S. MAKHANOV Chai WUTIWIWATCHAI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/10/01
Vol. E99-A  No. 10  pp. 1762-1773
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
multivariate empirical mode decompositionspeech analysisfundamental frequencyformant frequency
 Summary | Full Text:PDF(1.8MB)

Singular-Spectrum Analysis for Digital Audio Watermarking with Automatic Parameterization and Parameter Estimation
Jessada KARNJANA Masashi UNOKI Pakinee AIMMANEE Chai WUTIWIWATCHAI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/08/01
Vol. E99-D  No. 8  pp. 2109-2120
Type of Manuscript:  PAPER
Category: Information Network
Keyword: 
singular-spectrum analysissingular value decompositionsingular valuedifferential evolutionautomatic parameter estimationconcavity density function
 Summary | Full Text:PDF(1MB)

MTF-Based Kalman Filtering with Linear Prediction for Power Envelope Restoration in Noisy Reverberant Environments
Yang LIU Shota MORITA Masashi UNOKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/02/01
Vol. E99-A  No. 2  pp. 560-569
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
noisy reverberant speechpower envelopemodulation transfer function (MTF)linear predictionKalman filtering
 Summary | Full Text:PDF(2.3MB)

Method of Audio Watermarking Based on Adaptive Phase Modulation
Nhut Minh NGO Masashi UNOKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2016/01/01
Vol. E99-D  No. 1  pp. 92-101
Type of Manuscript:  Special Section PAPER (Special Section on Enriched Multimedia---Creation of a New Society through Value-added Multimedia Content---)
Category: 
Keyword: 
audio watermarkingblind detectionadaptive phase modulationall-pass filterchirp-z transformation
 Summary | Full Text:PDF(1.8MB)

Robust, Blindly-Detectable, and Semi-Reversible Technique of Audio Watermarking Based on Cochlear Delay Characteristics
Masashi UNOKI Ryota MIYAUCHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/01/01
Vol. E98-D  No. 1  pp. 38-48
Type of Manuscript:  Special Section PAPER (Special Section on Enriched Multimedia)
Category: 
Keyword: 
cochlear delay characteristicschirp z-transforminaudibilityblind detectionframe synchronizationsemi-reversible watermarking
 Summary | Full Text:PDF(1.7MB)

Speech Watermarking Method Based on Formant Tuning
Shengbei WANG Masashi UNOKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2015/01/01
Vol. E98-D  No. 1  pp. 29-37
Type of Manuscript:  Special Section PAPER (Special Section on Enriched Multimedia)
Category: 
Keyword: 
speech watermarkingformant tuningline spectral frequenciesinaudibilityrobustness
 Summary | Full Text:PDF(1.1MB)

Speech Enhancement Based on Noise Eigenspace Projection
Dongwen YING Masashi UNOKI Xugang LU Jianwu DANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2009/05/01
Vol. E92-D  No. 5  pp. 1137-1145
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
speech enhancementnoise eigenspacedimension reduction (DR)Karhunen-Loeve transform (KLT)
 Summary | Full Text:PDF(385.7KB)