Tadashi KITAMURA


A Hidden Semi-Markov Model-Based Speech Synthesis System
Heiga ZEN Keiichi TOKUDA Takashi MASUKO Takao KOBAYASIH Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/05/01
Vol. E90-D  No. 5  pp. 825-834
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
hidden Markov modelhidden semi-Markov modelHMM-based speech synthesis
 Summary | Full Text:PDF(452.5KB)

State Duration Modeling for HMM-Based Speech Synthesis
Heiga ZEN Takashi MASUKO Keiichi TOKUDA Takayoshi YOSHIMURA Takao KOBAYASIH Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2007/03/01
Vol. E90-D  No. 3  pp. 692-693
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
duration modelingspeech synthesishidden Markov model
 Summary | Full Text:PDF(54.1KB)

Parameter Sharing in Mixture of Factor Analyzers for Speaker Identification
Hiroyoshi YAMAMOTO Yoshihiko NANKAKU Chiyomi MIYAJIMA Keiichi TOKUDA Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/03/01
Vol. E88-D  No. 3  pp. 418-424
Type of Manuscript:  Special Section PAPER (Special Section on Corpus-Based Speech Technologies)
Category: Feature Extraction and Acoustic Medelings
Keyword: 
speaker identificationGMMmixture of factor analyzersparameter sharingminimum classification error training
 Summary | Full Text:PDF(545.3KB)

Continuous Speech Recognition Based on General Factor Dependent Acoustic Models
Hiroyuki SUZUKI Heiga ZEN Yoshihiko NANKAKU Chiyomi MIYAJIMA Keiichi TOKUDA Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/03/01
Vol. E88-D  No. 3  pp. 410-417
Type of Manuscript:  Special Section PAPER (Special Section on Corpus-Based Speech Technologies)
Category: Feature Extraction and Acoustic Medelings
Keyword: 
continuous speech recognitiontriphone HMMscontext clusteringBayesian networksvoice characteristicnoise environment
 Summary | Full Text:PDF(487.4KB)

Deterministic Annealing EM Algorithm in Acoustic Modeling for Speaker and Speech Recognition
Yohei ITAYA Heiga ZEN Yoshihiko NANKAKU Chiyomi MIYAJIMA Keiichi TOKUDA Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/03/01
Vol. E88-D  No. 3  pp. 425-431
Type of Manuscript:  Special Section PAPER (Special Section on Corpus-Based Speech Technologies)
Category: Feature Extraction and Acoustic Medelings
Keyword: 
DAEM algorithmacoustic modelingEM algorithmGMMsHMMs
 Summary | Full Text:PDF(680.4KB)

Applying Sparse KPCA for Feature Extraction in Speech Recognition
Amaro LIMA Heiga ZEN Yoshihiko NANKAKU Keiichi TOKUDA Tadashi KITAMURA Fernando G. RESENDE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/03/01
Vol. E88-D  No. 3  pp. 401-409
Type of Manuscript:  Special Section PAPER (Special Section on Corpus-Based Speech Technologies)
Category: Feature Extraction and Acoustic Medelings
Keyword: 
kernelsparsityprincipal component analysisfeature extractionspeech recognition
 Summary | Full Text:PDF(582.4KB)

On the Use of Kernel PCA for Feature Extraction in Speech Recognition
Amaro LIMA Heiga ZEN Yoshihiko NANKAKU Chiyomi MIYAJIMA Keiichi TOKUDA Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/12/01
Vol. E87-D  No. 12  pp. 2802-2811
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
kernelfeature spaceprincipal component analysisfeature extractionspeech recognition
 Summary | Full Text:PDF(425.6KB)

Mixture Density Models Based on Mel-Cepstral Representation of Gaussian Process
Toru TAKAHASHI Keiichi TOKUDA Takao KOBAYASHI Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/08/01
Vol. E86-A  No. 8  pp. 1971-1978
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: 
Keyword: 
Gaussian mixture modelstatistical frameworkmel-cepstrumEM algorithm
 Summary | Full Text:PDF(1MB)

Text-Independent Speaker Identification Using Gaussian Mixture Models Based on Multi-Space Probability Distribution
Chiyomi MIYAJIMA Yosuke HATTORI Keiichi TOKUDA Takashi MASUKO Takao KOBAYASHI Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/07/01
Vol. E84-D  No. 7  pp. 847-855
Type of Manuscript:  Special Section PAPER (Special Issue on Biometric Person Authentication)
Category: 
Keyword: 
speaker identificationpitchmulti-space probability distributionGaussian mixture model (GMM)minimum classification error
 Summary | Full Text:PDF(921.7KB)

Lip Location Normalized Training for Visual Speech Recognition
Oscar VANEGAS Keiichi TOKUDA Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2000/11/25
Vol. E83-D  No. 11  pp. 1969-1977
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
hidden Markov modellip location normalizationlipreadingTulips1M2VTS
 Summary | Full Text:PDF(2.4MB)

Characteristics of Multi-Layer Perceptron Models in Enhancing Degraded Speech
Thanh Tung LE John MASON Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1995/06/25
Vol. E78-D  No. 6  pp. 744-750
Type of Manuscript:  Special Section PAPER (Special Issue on Spoken Language Processing)
Category: 
Keyword: 
multi-layer perceptronspeech enhancementnon-linear time-domain filteringCELP coding
 Summary | Full Text:PDF(577.9KB)