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 (454.3KB)

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 (55.2KB)

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 (543.5KB)

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 (678.5KB)

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 (485.3KB)

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 (582KB)

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 (425KB)

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 (924.9KB)

Lip Location Normalized Training for Visual Speech Recognition
Oscar VANEGAS  Keiichi TOKUDA  Tadashi KITAMURA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2000/11/20
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: 1995/06/20
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 (579.3KB)