Nobuaki Minematsu

Orcid: 0000-0002-8778-9555

According to our database1, Nobuaki Minematsu authored at least 263 papers between 1990 and 2023.

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Bibliography

2023
Hierarchical Softmax for End-To-End Low-Resource Multilingual Speech Recognition.
Proceedings of the IEEE International Conference on Acoustics, 2023

Multiple Acoustic Features Speech Emotion Recognition Using Cross-Attention Transformer.
Proceedings of the IEEE International Conference on Acoustics, 2023

Exploring Isolated Musical Notes as Pre-training Data for Predominant Instrument Recognition in Polyphonic Music.
Proceedings of the Asia Pacific Signal and Information Processing Association Annual Summit and Conference, 2023

2022
Voice Conversion Based on Deep Neural Networks for Time-Variant Linear Transformations.
IEEE ACM Trans. Audio Speech Lang. Process., 2022

Hierarchical Softmax for End-to-End Low-resource Multilingual Speech Recognition.
CoRR, 2022

Automatic Prediction of Intelligibility of Words and Phonemes Produced Orally by Japanese Learners of English.
Proceedings of the IEEE Spoken Language Technology Workshop, 2022

Self-Adaptive Multilingual ASR Rescoring with Language Identification and Unified Language Model.
Proceedings of the Odyssey 2022: The Speaker and Language Recognition Workshop, 28 June, 2022

Detection of Learners' Listening Breakdown with Oral Dictation and Its Use to Model Listening Skill Improvement Exclusively Through Shadowing.
Proceedings of the Interspeech 2022, 2022

Gradual Improvements Observed in Learners' Perception and Production of L2 Sounds Through Continuing Shadowing Practices on a Daily Basis.
Proceedings of the Interspeech 2022, 2022

Text-to-speech synthesis using spectral modeling based on non-negative autoencoder.
Proceedings of the Interspeech 2022, 2022

Quantifying Discriminability between NMF Bases.
Proceedings of the IEEE International Conference on Acoustics, 2022

2021
Optimized Prediction of Fluency of L2 English Based on Interpretable Network Using Quantity of Phonation and Quality of Pronunciation.
Proceedings of the IEEE Spoken Language Technology Workshop, 2021

Lexical Density Analysis of Word Productions in Japanese English Using Acoustic Word Embeddings.
Proceedings of the Interspeech 2021, 22nd Annual Conference of the International Speech Communication Association, Brno, Czechia, 30 August, 2021

Multi-Granularity Annotation of Instantaneous Intelligibility of Learners' Utterances Based on Shadowing Techniques.
Proceedings of the IEEE Automatic Speech Recognition and Understanding Workshop, 2021

Acoustic Simulation of Body-conducted Speech and Its Use to Convert One's Recorded Voices to One's Own Voices.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2021

2020
Tensor Factor Analysis for Arbitrary Speaker Conversion.
IEICE Trans. Inf. Syst., 2020

Discriminative Method to Extract Coarse Prosodic Structure and its Application for Statistical Phrase/Accent Command Estimation.
Proceedings of the Interspeech 2020, 2020

Shadowability Annotation with Fine Granularity on L2 Utterances and its Improvement with Native Listeners' Script-Shadowing.
Proceedings of the Interspeech 2020, 2020

Converting Written Language to Spoken Language with Neural Machine Translation for Language Modeling.
Proceedings of the 2020 IEEE International Conference on Acoustics, 2020

2019
Many-to-Many and Completely Parallel-Data-Free Voice Conversion Based on Eigenspace DNN.
IEEE ACM Trans. Audio Speech Lang. Process., 2019

Native Listeners' Shadowing of Non-native Utterances as Spoken Annotation Representing Comprehensibility of the Utterances.
Proceedings of the 8th ISCA International Workshop on Speech and Language Technology in Education, 2019

Does Speaking Training Application with Speech Recognition Motivate Junior High School Students in Actual Classroom? - A Case Study.
Proceedings of the 8th ISCA International Workshop on Speech and Language Technology in Education, 2019

Prototyping a web-based phonetic training game to improve /r/-/l/ identification by Japanese learners of English.
Proceedings of the 8th ISCA International Workshop on Speech and Language Technology in Education, 2019

A Large Collection of Sentences Read Aloud by Vietnamese Learners of Japanese and Native Speaker's Reverse Shadowings.
Proceedings of the 22nd Conference of the Oriental COCOSDA International Committee for the Co-ordination and Standardisation of Speech Databases and Assessment Techniques, 2019

Analysis of Native Listeners' Facial Microexpressions While Shadowing Non-Native Speech - Potential of Shadowers' Facial Expressions for Comprehensibility Prediction.
Proceedings of the Interspeech 2019, 2019

Cooking State Recognition based on Acoustic Event Detection.
Proceedings of the 11th Workshop on Multimedia for Cooking and Eating Activities, 2019

Speech representation based on tensor factor analysis and its application to speaker recognition and language identification.
Proceedings of the 2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2019

Experimental investigation on the efficacy of Affine-DTW in the quality of voice conversion.
Proceedings of the 2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2019

DNN-based Statistical Parametric Speech Synthesis Incorporating Non-negative Matrix Factorization.
Proceedings of the 2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2019

2018
Wasserstein GAN and Waveform Loss-Based Acoustic Model Training for Multi-Speaker Text-to-Speech Synthesis Systems Using a WaveNet Vocoder.
IEEE Access, 2018

DNN-Based Scoring of Language Learners' Proficiency Using Learners' Shadowings and Native Listeners' Responsive Shadowings.
Proceedings of the 2018 IEEE Spoken Language Technology Workshop, 2018

A Comparative Study of Statistical Conversion of Face to Voice Based on Their Subjective Impressions.
Proceedings of the Interspeech 2018, 2018

A Study of Objective Measurement of Comprehensibility through Native Speakers' Shadowing of Learners' Utterances.
Proceedings of the Interspeech 2018, 2018

2017
Accent Sandhi Estimation of Tokyo Dialect of Japanese Using Conditional Random Fields.
IEICE Trans. Inf. Syst., 2017

Development and Evaluation of Online Infrastructure to Aid Teaching and Learning of Japanese Prosody.
IEICE Trans. Inf. Syst., 2017

Development and Maintenance of Practical and In-service Systems for Recording Shadowing Utterances and Their Assessment.
Proceedings of the 7th ISCA International Workshop on Speech and Language Technology in Education, 2017

Investigation of teacher-selected sentences and machine-suggested sentences in terms of correlation between human ratings and GOP-based machine scores.
Proceedings of the 7th ISCA International Workshop on Speech and Language Technology in Education, 2017

New Features and Effectiveness of Suzuki-kun, the First and Only Prosodic Reading Tutor of Tokyo Japanese.
Proceedings of the 7th ISCA International Workshop on Speech and Language Technology in Education, 2017

Automatic Scoring of Shadowing Speech Based on DNN Posteriors and Their DTW.
Proceedings of the Interspeech 2017, 2017

Acoustic-to-Articulatory Mapping Based on Mixture of Probabilistic Canonical Correlation Analysis.
Proceedings of the Interspeech 2017, 2017

Use of Global and Acoustic Features Associated with Contextual Factors to Adapt Language Models for Spontaneous Speech Recognition.
Proceedings of the Interspeech 2017, 2017

Parallel-Data-Free Many-to-Many Voice Conversion Based on DNN Integrated with Eigenspace Using a Non-Parallel Speech Corpus.
Proceedings of the Interspeech 2017, 2017

2016
Phonetisaurus: Exploring grapheme-to-phoneme conversion with joint n-gram models in the WFST framework.
Nat. Lang. Eng., 2016

Prosodic Reading Tutor of Japanese, Suzuki-kun: The first and only educational tool to teach the formal Japanese.
Proceedings of the 9th ISCA Speech Synthesis Workshop, 2016

Improved prediction of the accent gap between speakers of English for individual-based clustering of World Englishes.
Proceedings of the 2016 IEEE Spoken Language Technology Workshop, 2016

Acoustic correlates and gender effects in production and perception of Japanese polite speech.
Proceedings of the 10th International Symposium on Chinese Spoken Language Processing, 2016

Speaker Representations for Speaker Adaptation in Multiple Speakers' BLSTM-RNN-Based Speech Synthesis.
Proceedings of the Interspeech 2016, 2016

Voice Conversion Based on Matrix Variate Gaussian Mixture Model Using Multiple Frame Features.
Proceedings of the Interspeech 2016, 2016

Prediction of the Articulatory Movements of Unseen Phonemes of a Speaker Using the Speech Structure of Another Speaker.
Proceedings of the Interspeech 2016, 2016

Automatic Assessment and Error Detection of Shadowing Speech: Case of English Spoken by Japanese Learners.
Proceedings of the Interspeech 2016, 2016

Divergence estimation based on deep neural networks and its use for language identification.
Proceedings of the 2016 IEEE International Conference on Acoustics, 2016

Arbitrary speaker conversion based on speaker space bases constructed by deep neural networks.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2016

2015
Discriminative re-ranking for automatic speech recognition by leveraging invariant structures.
Speech Commun., 2015

Automatic recognition of Japanese vowel length accounting for speaking rate and motivated by perception analysis.
Speech Commun., 2015

Automatic prediction of intelligibility of English words spoken with Japanese accents - comparative study of features and models used for prediction.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2015

Development of a prosodic reading tutor of Japanese - effective use of TTS and F0 contour modeling techniques for CALL.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2015

Noise-robust and stress-free visualization of pronunciation diversity of World Englishes using a learner's self-centered viewpoint.
Proceedings of the 2015 International Conference Oriental COCOSDA held jointly with 2015 Conference on Asian Spoken Language Research and Evaluation (O-COCOSDA/CASLRE), 2015

Statistical acoustic-to-articulatory mapping unified with speaker normalization based on voice conversion.
Proceedings of the INTERSPEECH 2015, 2015

A measure of phonetic similarity to quantify pronunciation variation by using ASR technology.
Proceedings of the 18th International Congress of Phonetic Sciences, 2015

2014
Speaker-basis Accent Clustering Using Invariant Structure Analysis and the Speech Accent Archive.
Proceedings of the Odyssey 2014: The Speaker and Language Recognition Workshop, 2014

Keynote 2: Perceptual and structural analysis of pronunciation diversity of World Englishes.
Proceedings of the 2014 17th Oriental Chapter of the International Committee for the Co-ordination and Standardization of Speech Databases and Assessment Techniques (COCOSDA), 2014

Visualization of pronunciation diversity of world Englishes from a speaker's self-centered viewpoint.
Proceedings of the 2014 17th Oriental Chapter of the International Committee for the Co-ordination and Standardization of Speech Databases and Assessment Techniques (COCOSDA), 2014

Application of matrix variate Gaussian mixture model to statistical voice conversion.
Proceedings of the INTERSPEECH 2014, 2014

Semi-supervised noise dictionary adaptation for exemplar-based noise robust speech recognition.
Proceedings of the IEEE International Conference on Acoustics, 2014

Improved and robust prediction of pronunciation distance for individual-basis clustering of World Englishes pronunciation.
Proceedings of the IEEE International Conference on Acoustics, 2014

Leveraging phonetic context dependent invariant structure for continuous speech recognition.
Proceedings of the IEEE China Summit & International Conference on Signal and Information Processing, 2014

2013
Feature Enhancement With Joint Use of Consecutive Corrupted and Noise Feature Vectors With Discriminative Region Weighting.
IEEE Trans. Speech Audio Process., 2013

Japanese lexical accent recognition for a CALL system by deriving classification equations with perceptual experiments.
Speech Commun., 2013

Unsupervised optimal phoneme segmentation: theory and experimental evaluation.
IET Signal Process., 2013

Context labels based on "bunsetsu" for HMM-based speech synthesis of Japanese.
Proceedings of the Eighth ISCA Tutorial and Research Workshop on Speech Synthesis, 2013

Automatic recognition of vowel length in Japanese for a CALL system motivated by perceptual experiments.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2013

Speaker-based accented English clustering using a world English archive.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2013

Automatic detection of the words that will become unintelligible through Japanese accented pronunciation of English.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2013

OJAD: a free online accent and intonation dictionary for teachers and learners of Japanese.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2013

Failure transitions for joint n-gram models and G2p conversion.
Proceedings of the INTERSPEECH 2013, 2013

Development of a web framework for teaching and learning Japanese prosody: OJAD (online Japanese accent dictionary).
Proceedings of the INTERSPEECH 2013, 2013

Generation of fundamental frequency contours for Thai speech synthesis using tone nucleus model.
Proceedings of the INTERSPEECH 2013, 2013

A free online accent and intonation dictionary for teachers and learners of Japanese.
Proceedings of the INTERSPEECH 2013, 2013

Artificial bandwidth extension based on regularized piecewise linear mapping with discriminative region weighting and long-Span features.
Proceedings of the INTERSPEECH 2013, 2013

Improved estimation of femininity using GMM supervectors and SVR for voice therapy of Gender Identity Disorder Clients.
Proceedings of the IEEE International Conference on Acoustics, 2013

Automatic pronunciation clustering using a World English archive and pronunciation structure analysis.
Proceedings of the 2013 IEEE Workshop on Automatic Speech Recognition and Understanding, 2013

Discriminative piecewise linear transformation based on deep learning for noise robust automatic speech recognition.
Proceedings of the 2013 IEEE Workshop on Automatic Speech Recognition and Understanding, 2013

Speaker-invariant and rhythm-sensitive representation of spoken words.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

2012
Statistical Voice Conversion Based on Noisy Channel Model.
IEEE Trans. Speech Audio Process., 2012

A method for generation of Mandarin F<sub>0</sub> contours based on tone nucleus model and superpositional model.
Speech Commun., 2012

Automatic Chinese pronunciation error detection using SVM trained with structural features.
Proceedings of the 2012 IEEE Spoken Language Technology Workshop (SLT), 2012

Performance improvement of automatic pronunciation assessment in a noisy classroom.
Proceedings of the 2012 IEEE Spoken Language Technology Workshop (SLT), 2012

Audio-visual feature integration based on piecewise linear transformation for noise robust automatic speech recognition.
Proceedings of the 2012 IEEE Spoken Language Technology Workshop (SLT), 2012

Discriminative Reranking for LVCSR Leveraging Invariant Structure.
Proceedings of the INTERSPEECH 2012, 2012

Effects of Speaker Adaptive Training on Tensor-based Arbitrary Speaker Conversion.
Proceedings of the INTERSPEECH 2012, 2012

Improving WFST-based G2P Conversion with Alignment Constraints and RNNLM N-best Rescoring.
Proceedings of the INTERSPEECH 2012, 2012

Dynamic Grammars with Lookahead Composition for WFST-based Speech Recognition.
Proceedings of the INTERSPEECH 2012, 2012

Improved Prediction of Japanese Word Accent Sandhi Using CRF.
Proceedings of the INTERSPEECH 2012, 2012

Improved Automatic Extraction of Generation Process Model Commands and Its use for Generating Fundamental Frequency Contours for Training HMM-based Speech Synthesis.
Proceedings of the INTERSPEECH 2012, 2012

MFCC enhancement using joint corrupted and noise feature space for highly non-stationary noise environments.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

Unseen noise robust speech recognition using adaptive piecewise linear transformation.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

WFST-Based Grapheme-to-Phoneme Conversion: Open Source tools for Alignment, Model-Building and Decoding.
Proceedings of the 10th International Workshop on Finite State Methods and Natural Language Processing, 2012

2011
Regularized Maximum Likelihood Linear Regression Adaptation for Computer-Assisted Language Learning Systems.
IEICE Trans. Inf. Syst., 2011

Rule-based method for pitch level classification for a Japanese pitch accent CALL system.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2011

Comparison of native and non-native evaluations of the naturalness of Japanesewords with prosody modified through voice morphing.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2011

Representing fundamental frequency contours generated by HMM-based speech synthesis using generation process model.
Proceedings of the 2011 IEEE International Workshop on Machine Learning for Signal Processing, 2011

Prosody Conversion for Emotional Mandarin Speech Synthesis Using the Tone Nucleus Model.
Proceedings of the INTERSPEECH 2011, 2011

Continuous Digits Recognition Leveraging Invariant Structure.
Proceedings of the INTERSPEECH 2011, 2011

One-to-Many Voice Conversion Based on Tensor Representation of Speaker Space.
Proceedings of the INTERSPEECH 2011, 2011

A Study on Bag of Gaussian Model with Application to Voice Conversion.
Proceedings of the INTERSPEECH 2011, 2011

Painless WFST Cascade Construction for LVCSR - Transducersaurus.
Proceedings of the INTERSPEECH 2011, 2011

Measurement of Objective Intelligibility of Japanese Accented English Using ERJ (English Read by Japanese) Database.
Proceedings of the INTERSPEECH 2011, 2011

Gesture Design of Hand-to-Speech Converter Derived from Speech-to-Hand Converter Based on Probabilistic Integration Model.
Proceedings of the INTERSPEECH 2011, 2011

Adaptation of Prosody in Speech Synthesis by Changing Command Values of the Generation Process Model of Fundamental Frequency.
Proceedings of the INTERSPEECH 2011, 2011

High accurate model-integration-based voice conversion using dynamic features and model structure optimization.
Proceedings of the IEEE International Conference on Acoustics, 2011

Improved F0 modeling and generation in voice conversion.
Proceedings of the IEEE International Conference on Acoustics, 2011

Open Source WFST Tools for LVCSR Cascade Development.
Proceedings of the Finite-State Methods and Natural Language Processing, 2011

Decision of response timing for incremental speech recognition with reinforcement learning.
Proceedings of the 2011 IEEE Workshop on Automatic Speech Recognition & Understanding, 2011

Structure-constrained distribution matching using quadratic programming and its application to pronunciation evaluation.
Proceedings of the First Asian Conference on Pattern Recognition, 2011

2010
A study on invariance of f-divergence and its application to speech recognition.
IEEE Trans. Signal Process., 2010

Speech Structure and Its Application to Robust Speech Processing.
New Gener. Comput., 2010

Improved generation of prosodic features in HMM-based Mandarin speech synthesis.
Proceedings of the Seventh ISCA Tutorial and Research Workshop on Speech Synthesis, 2010

A method for modeling and generating Mandarin tone contour with phrase intonation based on the generation process model.
Proceedings of the 7th International Symposium on Chinese Spoken Language Processing, 2010

Human speech model based on information separation and its application to speech processing.
Proceedings of the 7th International Symposium on Chinese Spoken Language Processing, 2010

Dialect-based speaker classification using speaker-invariant dialect features.
Proceedings of the 7th International Symposium on Chinese Spoken Language Processing, 2010

Improving Mandarin segmental duration prediction with automatically extracted syntax features.
Proceedings of the INTERSPEECH 2010, 2010

Improved generation of fundamental frequency in HMM-based speech synthesis using generation process model.
Proceedings of the INTERSPEECH 2010, 2010

Integration of multilayer regression analysis with structure-based pronunciation assessment.
Proceedings of the INTERSPEECH 2010, 2010

Probabilistic integration of joint density model and speaker model for voice conversion.
Proceedings of the INTERSPEECH 2010, 2010

Regularized-MLLR speaker adaptation for computer-assisted language learning system.
Proceedings of the INTERSPEECH 2010, 2010

HMM-based sequence-to-frame mapping for voice conversion.
Proceedings of the IEEE International Conference on Acoustics, 2010

Pitch Pattern Recognition of Isolated Words for the Development of a Japanese Language Call System.
Proceedings of the Electronic Speech Signal Processing, 2010

Human Speech Model based on Information Separation.
Proceedings of the Electronic Speech Signal Processing, 2010

Using FO Contour Generation Process Model for Improved and Flexible Control of Prosodie Features in HMM-based Speech Synthesis.
Proceedings of the Electronic Speech Signal Processing, 2010

2009
A Theory of Phase Singularities for Image Representation and its Applications to Object Tracking and Image Matching.
IEEE Trans. Image Process., 2009

Improved structure-based automatic estimation of pronunciation proficiency.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2009

Structure-based pronunciation assessment.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2009

Analysis and comparison of automatic language proficiency assessment between shadowed sentences and read sentences.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2009

Development of a CALL system to enhance ESL/EFL learners' skills of shadowing and reading aloud.
Proceedings of the ISCA International Workshop on Speech and Language Technology in Education, 2009

Optimal event search using a structural cost function - improvement of structure to speech conversion.
Proceedings of the INTERSPEECH 2009, 2009

How to improve TTS systems for emotional expressivity.
Proceedings of the INTERSPEECH 2009, 2009

On invariant structural representation for speech recognition: theoretical validation and experimental improvement.
Proceedings of the INTERSPEECH 2009, 2009

Structural analysis of dialects, sub-dialects and sub-sub-dialects of Chinese.
Proceedings of the INTERSPEECH 2009, 2009

Analysis and utilization of MLLR speaker adaptation technique for learners' pronunciation evaluation.
Proceedings of the INTERSPEECH 2009, 2009

Speech generation from hand gestures based on space mapping.
Proceedings of the INTERSPEECH 2009, 2009

Affine invariant features and their application to speech recognition.
Proceedings of the IEEE International Conference on Acoustics, 2009

Mixture of Probabilistic Linear Regressions: A unified view of GMM-based mapping techiques.
Proceedings of the IEEE International Conference on Acoustics, 2009

Control of prosodic focus in corpus-based generation of fundamental frequency contours of Japanese based on the generation process model.
Proceedings of the IEEE International Conference on Acoustics, 2009

Sub-structure-based estimation of pronunciation proficiency and classification of learners.
Proceedings of the 2009 IEEE Workshop on Automatic Speech Recognition & Understanding, 2009

A study on Hidden Structural Model and its application to labeling sequences.
Proceedings of the 2009 IEEE Workshop on Automatic Speech Recognition & Understanding, 2009

2008
Filled pauses as cues to the complexity of upcoming phrases for native and non-native listeners.
Speech Commun., 2008

Tone Recognition of Continuous Mandarin Speech Based on Tone Nucleus Model and Neural Network.
IEICE Trans. Inf. Syst., 2008

Speaker Verification in Realistic Noisy Environment in Forensic Science.
IEICE Trans. Inf. Syst., 2008

Corpus-based synthesis of Mandarin speech with F0 contours generated by superposing tone components on rule-generated phrase components.
Proceedings of the 2008 IEEE Spoken Language Technology Workshop, 2008

Automatic Assessment of Language Proficiency through Shadowing.
Proceedings of the 6th International Symposium on Chinese Spoken Language Processing, 2008

Decomposition of rotational distortion caused by VTL difference using eigenvalues of its transformation matrix.
Proceedings of the INTERSPEECH 2008, 2008

Structure to speech conversion - speech generation based on infant-like vocal imitation.
Proceedings of the INTERSPEECH 2008, 2008

f-divergence is a generalized invariant measure between distributions.
Proceedings of the INTERSPEECH 2008, 2008

Metric learning for unsupervised phoneme segmentation.
Proceedings of the INTERSPEECH 2008, 2008

Control of prosodic focus in corpus-based generation of fundamental frequency based on the generation process model.
Proceedings of the INTERSPEECH 2008, 2008

Robust voiced/unvoiced speech classification using empirical mode decomposition and periodic correlation model.
Proceedings of the INTERSPEECH 2008, 2008

Automatic pronunciation evaluation of language learners' utterances generated through shadowing.
Proceedings of the INTERSPEECH 2008, 2008

Directional dependency of cepstrum on vocal tract length.
Proceedings of the IEEE International Conference on Acoustics, 2008

Phase singularities for image representation and matching.
Proceedings of the IEEE International Conference on Acoustics, 2008

Unsupervised optimal phoneme segmentation: Objectives, algorithm and comparisons.
Proceedings of the IEEE International Conference on Acoustics, 2008

Multi-stream parameterization for structural speech recognition.
Proceedings of the IEEE International Conference on Acoustics, 2008

2007
Two-step generation of Mandarin F0 contours based on tone nucleus and superpositional models.
Proceedings of the Sixth ISCA Workshop on Speech Synthesis, 2007

CRF-based statistical learning of Japanese accent sandhi for developing Japanese text-to-speech synthesis systems.
Proceedings of the Sixth ISCA Workshop on Speech Synthesis, 2007

Development of a Femininity Estimator for Voice Therapy of Gender Identity Disorder Clients.
Proceedings of the Speaker Classification II, 2007

Structural representation of pronunciation and its application for classifying Japanese learners of English.
Proceedings of the Workshop on Speech and Language Technology in Education, 2007

Are learners myna birds to the averaged distributions of native speakers? - a note ofwarning from a serious speech engineer -.
Proceedings of the Workshop on Speech and Language Technology in Education, 2007

Consideration of Infants' Vocal Imitation Through Modeling Speech as Timbre-Based Melody.
Proceedings of the New Frontiers in Artificial Intelligence, 2007

Features of pauses and conjunctions at syntactic and discourse boundaries in Japanese monologues.
Proceedings of the INTERSPEECH 2007, 2007

A framework of reply speech generation for concept-to-speech conversion in spoken dialogue systems.
Proceedings of the INTERSPEECH 2007, 2007

Pitch estimation of noisy speech signals using empirical mode decomposition.
Proceedings of the INTERSPEECH 2007, 2007

Structural assessment of language learners' pronunciation.
Proceedings of the INTERSPEECH 2007, 2007

Corpus-based generation of prosodic features from text based on generation process model.
Proceedings of the INTERSPEECH 2007, 2007

F<sub>0</sub> models show Chinese speakers of Japanese insert intonational boundaries and drop pitch.
Proceedings of the INTERSPEECH 2007, 2007

EMD based soft-thresholding for speech enhancement.
Proceedings of the INTERSPEECH 2007, 2007

Automatic recognition of connected vowels only using speaker-invariant representation of speech dynamics.
Proceedings of the INTERSPEECH 2007, 2007

Development of a Femininity Estimator using Speaker Recognition Techniques for Voice Therapy of Gender Identity Disorder Clients.
Proceedings of the IEEE International Conference on Acoustics, 2007

Speech enhancement using soft thresholding with DCT-EMD based hybrid algorithm.
Proceedings of the 15th European Signal Processing Conference, 2007

Random discriminant structure analysis for automatic recognition of connected vowels.
Proceedings of the IEEE Workshop on Automatic Speech Recognition & Understanding, 2007

2006
Separation of Mixed Audio Signals by Decomposing Hilbert Spectrum with Modified EMD.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006

Structural Representation of the pronunciation and its Use for Call.
Proceedings of the 2006 IEEE ACL Spoken Language Technology Workshop, 2006

Localization based audio source separation by sub-band beamforming.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2006), 2006

Factors affecting speakers² choice of fillers in Japanese presentations.
Proceedings of the INTERSPEECH 2006, 2006

Development of a program for self assessment of Japanese pronunciation by English learners.
Proceedings of the INTERSPEECH 2006, 2006

Tone recognition of continuous speech of standard Chinese using neural network and tone nucleus model.
Proceedings of the INTERSPEECH 2006, 2006

Corpus-based generation of fundamental frequency contours using generation process model and considering emotional focuses.
Proceedings of the INTERSPEECH 2006, 2006

Unfilled pauses in Japanese sentences read aloud by non-native learners.
Proceedings of the INTERSPEECH 2006, 2006

Localization Based Separation of Mixed Audio Signals with Binary Masking of Hilbert Spectrum.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

Para-Linguistic Information Represented as Distortion of the Acoustic Universal Structure In Speech.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

Separation of Mixed Audio Signals by Source Localization and Binary Masking with Hilbert Spectrum.
Proceedings of the Independent Component Analysis and Blind Signal Separation, 2006

Factors influencing ratios of filled pauses at clause boundaries in Japanese.
Proceedings of the ISCA Tutorial and Research Workshop on Experimental Linguistics, 2006

2005
Synthesis of F<sub>0</sub> contours using generation process model parameters predicted from unlabeled corpora: application to emotional speech synthesis.
Speech Commun., 2005

Audio source separation by source localization with Hilbert spectrum.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2005), 2005

Filled pauses as cues to the complexity of following phrases.
Proceedings of the INTERSPEECH 2005, 2005

Generation of fundamental frequency contours for Mandarin speech synthesis based on tone nucleus model.
Proceedings of the INTERSPEECH 2005, 2005

Japanese vowel recognition based on structural representation of speech.
Proceedings of the INTERSPEECH 2005, 2005

Multi-band approach of audio source discrimination with empirical mode decomposition.
Proceedings of the INTERSPEECH 2005, 2005

Corpus-based extraction of F0 contour generation process model parameters.
Proceedings of the INTERSPEECH 2005, 2005

Structural representation of the non-native pronunciations.
Proceedings of the INTERSPEECH 2005, 2005

Mathematical Evidence of the Acoustic Universal Structure in Speech.
Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

The effects of filled pauses on native and non-native listeners<sup>2</sup> speech processing.
Proceedings of the ISCA Tutorial and Research Workshop (ITRW) on Disfluency in Spontaneous Speech, 2005

Improved concept-to-speech generation in a dialogue system on road guidance.
Proceedings of the 4th International Conference on Cyberworlds (CW 2005), 2005

2004
Galatea: Open-Source Software for Developing Anthropomorphic Spoken Dialog Agents.
Proceedings of the Life-like characters - tools, affective functions, and applications., 2004

A spoken dialogue system for document information retrieval utilizing topic knowledge.
Syst. Comput. Jpn., 2004

Prosodic Analysis and Modeling of Nagauta Singing to Generate Prosodic Contours from Standard Scores.
IEICE Trans. Inf. Syst., 2004

Corpus-based synthesis of fundamental frequency contours with various speaking styles from text using F0 contour generation process model.
Proceedings of the Fifth ISCA ITRW on Speech Synthesis, 2004

Clause types and filed pauses in Japanese spontaneous monologues.
Proceedings of the INTERSPEECH 2004, 2004

Audio source separation from the mixture using empirical mode decomposition with independent subspace analysis.
Proceedings of the INTERSPEECH 2004, 2004

Pronunciation assessment based upon the phonological distortions observed in language learners' utterances.
Proceedings of the INTERSPEECH 2004, 2004

Pronunciation assessment based upon the compatibility between a learner's pronunciation structure and the target language's lexical structure.
Proceedings of the INTERSPEECH 2004, 2004

Use of prosodic features for speech recognition.
Proceedings of the INTERSPEECH 2004, 2004

N-gram language modeling of Japanese using bunsetsu boundaries.
Proceedings of the INTERSPEECH 2004, 2004

Yet another acoustic representation of speech sounds.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

2003
Data-driven generation of F<sub>0</sub> contours using a superpositional model.
Speech Commun., 2003

Mora F0 representation for accent type identification in continuous speech and considerations on its relation with perceived pitch values.
Speech Commun., 2003

Estimation of resonant characteristics based on AR-HMM modeling and spectral envelope conversion of vowel sounds.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Considerations on vowel durations for Japanese CALL system.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Automatic estimation of perceptual age using speaker modeling techniques.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Improvement of non-native speech recognition by effectively modeling frequently observed pronunciation habits.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Prosodic analysis and modeling of the NAGAUTA singing to synthesize its prosodic patterns from the standard notation.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

CART-based factor analysis of intelligibility reduction in Japanese English.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Speech generation from concept for realizing conversation with an agent in a virtual room.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Corpus-based synthesis of fundamental frequency contours of Japanese using automatically-generated prosodic corpus and generation process model.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

A pronunciation training system for Japanese lexical accents with corrective feedback in learner's voice.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Use of linguistic information for automatic extraction of f_0 contour generation process model parameters.
Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

2002
English Speech Database Read by Japanese Learners for CALL System Development.
Proceedings of the Third International Conference on Language Resources and Evaluation, 2002

Separation of voiced source characteristics and vocal tract transfer function characteristics for speech sounds by iterative analysis based on AR-HMM model.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

Automatic extraction of model parameters from fundamental frequency contours of English utterances.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

Acoustic modeling of sentence stress using differential features between syllables for English rhythm learning system development.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

Corpus-based analysis of English spoken by Japanese students in view of the entire phonemic system of English.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

Integration of MLLR adaptation with pronunciation proficiency adaptation for non-native speech recognition.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

Robust speech recognition using inter-speaker and intra-speaker adaptation.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

Statistical language modeling with prosodic boundaries and its use for continuous speech recognition.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

Improved corpus-based synthesis of fundamental frequency contours using generation process model.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

A method for automatic extraction of model parameters from fundamental frequency contours of speech.
Proceedings of the IEEE International Conference on Acoustics, 2002

Automatic estimation of one's age with his/her speech based upon acoustic modeling techniques of speakers.
Proceedings of the IEEE International Conference on Acoustics, 2002

2001
Instantaneous estimation of accentuation habits for Japanese students to learn English pronunciation.
Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

Use of topic knowledge in spoken dialogue information retrieval system for academic documents.
Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

Identification of accent and intonation in sentences for CALL systems.
Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

Corpus-based synthesis of fundamental frequency contours based on a generation process model.
Proceedings of the EUROSPEECH 2001 Scandinavia, 2001

Generation of F<sub>0</sub> contours using a model-constrained data-driven method.
Proceedings of the IEEE International Conference on Acoustics, 2001

2000
IPA Japanese Dictation Free Software Project.
Proceedings of the Second International Conference on Language Resources and Evaluation, 2000

Data-driven intonation modeling using a neural network and a command response model.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Development of a formant-based analysis-synthesis system and generation of high quality liquid sounds of Japanese.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Instantaneous estimation of prosodic pronunciation habits for Japanese students to learn English pronunciation.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Quality improvement of PSOLA analysis-synthesis using partial zero-phase conversion.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Performance comparison among HMM, DTW, and human abilities in terms of identifying stress patterns of word utterances.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Modeling phone correlation for speaker adaptive speech recognition.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Efficient search strategy in large vocabulary continuous speech recognition using prosodic boundary information.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Free software toolkit for Japanese large vocabulary continuous speech recognition.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Identification of Japanese double-mora phonemes considering speaking rate for the use in CALL systems.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

Analytical and perceptual study on the role of acoustic features in realizing emotional speech.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

1998
Modeling of variations in cepstral coefficients caused by F0 changes and its application to speech processing.
Proceedings of the 5th International Conference on Spoken Language Processing, Incorporating The 7th Australian International Speech Science and Technology Conference, Sydney Convention Centre, Sydney, Australia, 30th November, 1998

Sharable software repository for Japanese large vocabulary continuous speech recognition.
Proceedings of the 5th International Conference on Spoken Language Processing, Incorporating The 7th Australian International Speech Science and Technology Conference, Sydney Convention Centre, Sydney, Australia, 30th November, 1998

Continuous speech recognition using segmental unit input HMMs with a mixture of probability density functions and context dependency.
Proceedings of the 5th International Conference on Spoken Language Processing, Incorporating The 7th Australian International Speech Science and Technology Conference, Sydney Convention Centre, Sydney, Australia, 30th November, 1998

Evaluation of Japanese manners of generating word accent of English based on a stressed syllable detection technique.
Proceedings of the 5th International Conference on Spoken Language Processing, Incorporating The 7th Australian International Speech Science and Technology Conference, Sydney Convention Centre, Sydney, Australia, 30th November, 1998

1997
Automatic detection of accent in English words spoken by Japanese students.
Proceedings of the Fifth European Conference on Speech Communication and Technology, 1997

1996
Prosodic manipulation system of speech material for perceptual experiments.
Proceedings of the 4th International Conference on Spoken Language Processing, 1996

Automatic detection of accent nuclei at the head of words for speech recognition.
Proceedings of the 4th International Conference on Spoken Language Processing, 1996

1995
Duration Modeling with Decreased Intra-Group Temporal Variation for HMM-Based Phoneme Recognition.
IEICE Trans. Inf. Syst., 1995

1994
Role of prosodic features in the human process of speech perception.
Proceedings of the 3rd International Conference on Spoken Language Processing, 1994

Speech recognition using HMM with decreased intra-group variation in the temporal structure.
Proceedings of the 3rd International Conference on Spoken Language Processing, 1994

1992
The influence of semantic and syntactic information on spoken sentence recognition.
Proceedings of the Second International Conference on Spoken Language Processing, 1992

1990
Influence of context and knowledge on the perception of continuous speech.
Proceedings of the First International Conference on Spoken Language Processing, 1990


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