Hiroshi G. Okuno

2018

A spatiotemporal analysis of acoustic interactions between great reed warblers (Acrocephalus arundinaceus) using microphone arrays and robot audition software HARK

Suzuki, R., Matsubayashi, S., Saito, F., Murate, T., Masuda, T., Yamamoto, K., Kojima, R., Nakadai, K. & Okuno, H. G., 2018 Jan 1, In : Ecology and Evolution. 8, 1, p. 812-825 14 p.

Research output: Contribution to journal › Article

spatiotemporal analysis

robots

song

animal communication

acoustics

1 Citation (Scopus)

Assessment of MUSIC-based noise-robust sound source localization with active frequency range filtering

Hoshiba, K., Nakadai, K., Kumon, M. & Okuno, H. G., 2018 Jun 1, In : Journal of Robotics and Mechatronics. 30, 3, p. 426-435 10 p.

Research output: Contribution to journal › Article

Acoustic noise

Acoustic waves

Processing

Disasters

Microphones

6 Citations (Scopus)

Speech Enhancement Based on Bayesian Low-Rank and Sparse Decomposition of Multichannel Magnitude Spectrograms

Bando, Y., Itoyama, K., Konyo, M., Tadokoro, S., Nakadai, K., Yoshii, K., Kawahara, T. & Okuno, H. G., 2018 Feb 1, In : IEEE/ACM Transactions on Audio Speech and Language Processing. 26, 2, p. 215-230 16 p.

Research output: Contribution to journal › Article

Speech Enhancement

Spectrogram

Speech enhancement

spectrograms

Microphones

2017

6 Citations (Scopus)

Acoustic monitoring of the great reed warbler using multiple microphone arrays and robot audition

Matsubayashi, S., Suzuki, R., Saito, F., Murate, T., Masuda, T., Yamamoto, K., Kojima, R., Nakadai, K. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 224-235 12 p.

Research output: Contribution to journal › Article

Audition

Microphones

Acoustics

Robots

Monitoring

19 Citations (Scopus)

Design of UAV-embedded microphone array system for sound source localization in outdoor environments

Hoshiba, K., Washizaki, K., Wakabayashi, M., Ishiki, T., Kumon, M., Bando, Y., Gabriel, D., Nakadai, K. & Okuno, H. G., 2017 Nov 3, In : Sensors (Switzerland). 17, 11, 2535.

Research output: Contribution to journal › Article

Sound Localization

pilotless aircraft

Microphones

Unmanned aerial vehicles (UAV)

microphones

8 Citations (Scopus)

Development, deployment and applications of robot audition open source software HARK

Nakadai, K., Okuno, H. G. & Mizumoto, T., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 16-25 10 p.

Research output: Contribution to journal › Article

Audition

Robots

Acoustic waves

Source separation

Microphones

1 Citation (Scopus)

Development of a robotic pet using sound source localization with the HARK robot audition system

Suzuki, R., Takahashi, T. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 146-153 8 p.

Research output: Contribution to journal › Article

Audition

Robotics

Acoustic waves

Robots

Human robot interaction

5 Citations (Scopus)

Harkbird: Exploring acoustic interactions in bird communities using a microphone array

Suzuki, R., Matsubayashi, S., Hedley, R. W., Nakadai, K. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 213-223 11 p.

Research output: Contribution to journal › Article

Birds

Audition

Microphones

Acoustics

Robots

1 Citation (Scopus)

Influence of different impulse response measurement signals on MUSIC-based sound source localization

Suzuki, T., Otsuka, H., Akahori, W., Bando, Y. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 72-82 11 p.

Research output: Contribution to journal › Article

Impulse response

Acoustic waves

Acoustics

Transfer functions

Source separation

6 Citations (Scopus)

Low latency and high quality two-stage human-voice-enhancement system for a hose-shaped rescue robot

Bando, Y., Saruwatari, H., Ono, N., Makino, S., Itoyama, K., Kitamura, D., Ishimura, M., Takakusaki, M., Mae, N., Yamaoka, K., Matsui, Y., Ambe, Y., Konyo, M., Tadokoro, S., Yoshii, K. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 198-212 15 p.

Research output: Contribution to journal › Article

Hose

Robots

Microphones

Principal component analysis

Acoustic waves

1 Citation (Scopus)

Size effect on call properties of japanese tree frogs revealed by audio-processing technique

Aihara, I., Takeda, R., Mizumoto, T., Otsuka, T. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 247-254 8 p.

Research output: Contribution to journal › Article

Ecosystems

Independent component analysis

Audition

Processing

Mechanics

1 Citation (Scopus)

Swarm of sound-to-light conversion devices to monitor acoustic communication among small nocturnal animals

Mizumoto, T., Aihara, I., Otsuka, T., Awano, H. & Okuno, H. G., 2017 Feb 1, In : Journal of Robotics and Mechatronics. 29, 1, p. 255-267 13 p.

Research output: Contribution to journal › Article

Animals

Acoustics

Acoustic waves

Communication

Biocommunications

2 Citations (Scopus)

Visualizing Phonotactic Behavior of Female Frogs in Darkness

Aihara, I., Bishop, P. J., Ohmer, M. E. B., Awano, H., Mizumoto, T., Okuno, H. G., Narins, P. M. & Hero, J. M., 2017 Dec 1, In : Scientific Reports. 7, 1, 10539.

Research output: Contribution to journal › Article

frogs

phonotaxis

Chloris

animals

Hylidae

2016

1 Citation (Scopus)

Call alternation between specific pairs of male frogs revealed by a sound-imaging method in their natural habitat

Aihara, I., Mizumoto, T., Awano, H. & Okuno, H. G., 2016, In : Unknown Journal. 08-12-September-2016, p. 2597-2601 5 p.

Research output: Contribution to journal › Article

frogs

habitats

Statistical tests

Alternation

alternations

7 Citations (Scopus)

Localizing bird songs using an open source robot audition system with a microphone array

Suzuki, R., Matsubayashi, S., Nakadai, K. & Okuno, H. G., 2016, In : Unknown Journal. 08-12-September-2016, p. 2626-2630 5 p.

Research output: Contribution to journal › Article

Microphone Array

birds

Birds

Audition

Microphones

2015

13 Citations (Scopus)

A Recipe for Empathy: Integrating the Mirror System, Insula, Somatosensory Cortex and Motherese

Lim, A. & Okuno, H. G., 2015, In : International Journal of Social Robotics. 7, 1, p. 35-49 15 p.

Research output: Contribution to journal › Article

Mirrors

Robots

Neurons

Experiments

Temperature

122 Citations (Scopus)

Audio-visual speech recognition using deep learning

Noda, K., Yamaguchi, Y., Nakadai, K., Okuno, H. G. & Ogata, T., 2015 Jun 1, In : Applied Intelligence. 42, 4, p. 722-737 16 p.

Research output: Contribution to journal › Article

Hidden Markov models

Speech recognition

Labels

Signal to noise ratio

Neural networks

6 Citations (Scopus)

Automatic Speech Recognition for Mixed Dialect Utterances by Mixing Dialect Language Models

Hirayama, N., Yoshino, K., Itoyama, K., Mori, S. & Okuno, H. G., 2015 Feb 1, In : IEEE/ACM Transactions on Speech and Language Processing. 23, 2, p. 373-382 10 p., 7001195.

Research output: Contribution to journal › Article

Automatic Speech Recognition

Language Model

speech recognition

Speech recognition

dialect

4 Citations (Scopus)

Bayesian audio-to-score alignment based on joint inference of Timbre, Volume, Tempo, and note onset timings

Maezawa, A. & Okuno, H. G., 2015 Mar 27, In : Computer Music Journal. 39, 1, p. 74-87 14 p.

Research output: Contribution to journal › Article

Dynamical systems

Musical instruments

Reverberation

Inference

Onset

8 Citations (Scopus)

Beat Tracking for Interactive Dancing Robots

Oliveira, J. L., Ince, G., Nakamura, K., Nakadai, K., Okuno, H. G., Gouyon, F. & Reis, L. P., 2015 Dec 1, In : International Journal of Humanoid Robotics. 12, 4, 1550023.

Research output: Contribution to journal › Article

Robots

Audition

Speech recognition

Acoustics

Recovery

1 Citation (Scopus)

HMM-based attacks on Google’s ReCAPTCHA with continuous visual and audio symbols

Sano, S., Otsuka, T., Itoyama, K. & Okuno, H. G., 2015 Nov 15, In : Journal of Information Processing. 23, 6, p. 814-826 13 p.

Research output: Contribution to journal › Article

Hidden Markov models

Audio systems

Learning algorithms

Learning systems

Cracks

5 Citations (Scopus)

Posture estimation of hose-shaped robot by using active microphone array

Bando, Y., Otsuka, T., Mizumoto, T., Itoyama, K., Konyo, M., Tadokoro, S., Nakadai, K. & Okuno, H. G., 2015 Jan 2, In : Advanced Robotics. 29, 1, p. 35-49 15 p.

Research output: Contribution to journal › Article

Hose

Microphones

Robots

Loudspeakers

Reverberation

1 Citation (Scopus)

Preferential training of neurodynamical model based on predictability of target dynamics

Nishide, S., Nobuta, H., Okuno, H. G. & Ogata, T., 2015 May 3, In : Advanced Robotics. 29, 9, p. 587-596 10 p.

Research output: Contribution to journal › Article

Robots

Recurrent neural networks

Backpropagation

Experiments

End effectors

4 Citations (Scopus)

Toward a quizmaster robot for speech-based multiparty interaction

Nishimuta, I., Itoyama, K., Yoshii, K. & Okuno, H. G., 2015 Sep 17, In : Advanced Robotics. 29, 18, p. 1205-1219 15 p.

Research output: Contribution to journal › Article

Robots

Speech recognition

Microphones

Experiments

2014

29 Citations (Scopus)

Bayesian nonparametrics for microphone array processing

Otsuka, T., Ishiguro, K., Sawada, H. & Okuno, H. G., 2014, In : IEEE Transactions on Audio, Speech and Language Processing. 22, 2, p. 493-504 12 p.

Research output: Contribution to journal › Article

Array processing

Microphones

microphones

Acoustic waves

acoustics

Erratum: A real-time super-resolution robot audition system that improves the robustness of simultaneous speech recognition (Advanced Robotics (2013) 27 (933-945) DOI: 10.1080/01691864.2013.797139)

Nakamura, K., Nakadai, K. & Okuno, H. G., 2014 Oct 1, In : Advanced Robotics. 28, 19, p. 1329 1 p.

Research output: Contribution to journal › Article

Audition

Robustness (control systems)

Speech recognition

Robotics

Robots

13 Citations (Scopus)

Improved sound source localization in horizontal plane for binaural robot audition

Kim, U. H., Nakadai, K. & Okuno, H. G., 2014, In : Applied Intelligence. 42, 1, p. 63-74 12 p.

Research output: Contribution to journal › Article

Audition

Acoustic waves

Robots

Amplification

Time delay

9 Citations (Scopus)

Multichannel sound source dereverberation and separation for arbitrary number of sources based on Bayesian nonparametrics

Otsuka, T., Ishiguro, K., Yoshioka, T., Sawada, H. & Okuno, H. G., 2014 Dec 1, In : IEEE/ACM Transactions on Speech and Language Processing. 22, 12, p. 2218-2232 15 p., 6926796.

Research output: Contribution to journal › Article

Bayesian Nonparametrics

Uncertainty

Acoustic waves

uncertainty

Microphones

5 Citations (Scopus)

Nonparametric bayesian dereverberation of power spectrograms based on infinite-order autoregressive processes

Maezawa, A., Itoyama, K., Yoshii, K. & Okuno, H. G., 2014 Dec 1, In : IEEE/ACM Transactions on Speech and Language Processing. 22, 12, p. 1918-1930 13 p., 6894190.

Research output: Contribution to journal › Article

autoregressive processes

Spectrogram

Bayesian Nonparametrics

spectrograms

Autoregressive Process

24 Citations (Scopus)

Spatio-temporal dynamics in collective frog choruses examined by mathematical modeling and field observations

Aihara, I., Mizumoto, T., Otsuka, T., Awano, H., Nagira, K., Okuno, H. G. & Aihara, K., 2014 Jan 27, In : Scientific Reports. 4, 3891.

Research output: Contribution to journal › Article

frog

breeding site

modeling

simulation

imaging method

4 Citations (Scopus)

The interaction between a robot and multiple people based on spatially mapping of friendliness and motion parameters

Tasaki, T., Ogata, T. & Okuno, H. G., 2014, In : Advanced Robotics. 28, 1, p. 39-51 13 p.

Research output: Contribution to journal › Article

Robots

Sensors

Factor analysis

16 Citations (Scopus)

The MEI robot: Towards using motherese to develop multimodal emotional intelligence

Lim, A. & Okuno, H. G., 2014, In : IEEE Transactions on Autonomous Mental Development. 6, 2, p. 126-138 13 p., 6798757.

Research output: Contribution to journal › Article

Robots

Display devices

Controllers

Experiments

2013

22 Citations (Scopus)

A real-time super-resolution robot audition system that improves the robustness of simultaneous speech recognition

Nakamura, K., Nakadai, K. & Okuno, H. G., 2013 Aug 1, In : Advanced Robotics. 27, 12, p. 933-945 13 p.

Research output: Contribution to journal › Article

Audition

Speech recognition

Acoustic waves

Robots

Source separation

7 Citations (Scopus)

Improved binaural sound localization and tracking for unknown time-varying number of speakers

Kim, U. H. & Okuno, H. G., 2013 Jul, In : Advanced Robotics. 27, 15, p. 1161-1173 13 p.

Research output: Contribution to journal › Article

Acoustic waves

Robots

Correlation methods

Audition

Microphones

1 Citation (Scopus)

Nonparametric Bayesian sparse factor analysis for frequency domain blind source separation without permutation ambiguity Sparse modeling for speech and audio processing

Nagira, K., Otsuka, T. & Okuno, H. G., 2013, In : Eurasip Journal on Audio, Speech, and Music Processing. 2013, 1, 4.

Research output: Contribution to journal › Article

factor analysis

Blind source separation

permutations

Factor analysis

ambiguity

Robust multipitch analyzer against initialization based on latent harmonic allocation using overtone corpus

Sakaue, D., Itoyama, K., Ogata, T. & Okuno, H. G., 2013 Apr, In : Journal of Information Processing. 21, 2, p. 246-255 10 p.

Research output: Contribution to journal › Article

Musical instruments

Frequency estimation

2012

3 Citations (Scopus)

A multimodal tempo and beat-tracking system based on audiovisual information from live guitar performances

Itohara, T., Otsuka, T., Mizumoto, T., Lim, A., Ogata, T. & Okuno, H. G., 2012, In : Eurasip Journal on Audio, Speech, and Music Processing. 2012, 1, 6.

Research output: Contribution to journal › Article

Pattern matching

synchronism

Hough transforms

Optical flows

Trajectories

4 Citations (Scopus)

A musical robot that synchronizes with a coplayer using non-verbal cues

Lim, A., Mizumoto, T., Ogata, T. & Okuno, H. G., 2012, In : Advanced Robotics. 26, 3-4, p. 363-381 19 p.

Research output: Contribution to journal › Article

Robots

Visual communication

Synchronization

Agglomeration

Communication

5 Citations (Scopus)

Automated violin fingering transcription through analysis of an audio recording

Maezawa, A., Itoyama, K., Komatani, K., Ogata, T. & Okuno, H. G., 2012 Sep, In : Computer Music Journal. 36, 3, p. 57-72 16 p.

Research output: Contribution to journal › Article

Audio recordings

Transcription

Hidden Markov models

Ergonomics

Cost functions

Automatic allocation of training data for speech understanding based on multiple model combinations

Komatani, K., Nakano, M., Katsumaru, M., Funakoshi, K., Ogata, T. & Okuno, H. G., 2012 Sep, In : IEICE Transactions on Information and Systems. E95-D, 9, p. 2298-2307 10 p.

Research output: Contribution to journal › Article

Speech recognition

Statistical methods

7 Citations (Scopus)

Efficient blind dereverberation and echo cancellation based on independent component analysis for actual acoustic signals

Takeda, R., Nakadai, K., Takahashi, T., Komatani, K., Ogata, T. & Okuno, H. G., 2012, In : Neural Computation. 24, 1, p. 234-272 39 p.

Research output: Contribution to journal › Article

Acoustics

Costs and Cost Analysis

Fourier Analysis

Hand

Observation

21 Citations (Scopus)

Tool-body assimilation of humanoid robot using a neurodynamical system

Nishide, S., Tani, J., Takahashi, T., Okuno, H. G. & Ogata, T., 2012, In : IEEE Transactions on Autonomous Mental Development. 4, 2, p. 139-149 11 p., 6095595.

Research output: Contribution to journal › Article

Robots

Recurrent neural networks

Feature extraction

Self organizing maps

Brain

10 Citations (Scopus)

Towards expressive musical robots: A cross-modal framework for emotional gesture, voice and music

Lim, A., Ogata, T. & Okuno, H. G., 2012, In : Eurasip Journal on Audio, Speech, and Music Processing. 2012, 1, 3.

Research output: Contribution to journal › Article

emotions

music

robots

Robots

Robotics

2011

18 Citations (Scopus)

A multi-expert model for dialogue and behavior control of conversational robots and agents

Nakano, M., Hasegawa, Y., Funakoshi, K., Takeuchi, J., Torii, T., Nakadai, K., Kanda, N., Komatani, K., Okuno, H. G. & Tsujino, H., 2011 Mar, In : Knowledge-Based Systems. 24, 2, p. 248-256 9 p.

Research output: Contribution to journal › Article

Robots

Robot

Switching models

Module

Charge

81 Citations (Scopus)

Blind separation and dereverberation of speech mixtures by joint optimization

Yoshioka, T., Nakatani, T., Miyoshi, M. & Okuno, H. G., 2011, In : IEEE Transactions on Audio, Speech and Language Processing. 19, 1, p. 69-84 16 p., 5428853.

Research output: Contribution to journal › Article

Blind source separation

Reverberation

optimization

reverberation

matrices

2 Citations (Scopus)

Classification of known and unknown environmental sounds based on self-organized space using a recurrent neural network

Zhang, Y., Ogata, T., Nishide, S., Takahashi, T. & Okuno, H. G., 2011, In : Advanced Robotics. 25, 17, p. 2127-2141 15 p.

Research output: Contribution to journal › Article

Recurrent neural networks

Acoustic waves

Robots

Hardware

14 Citations (Scopus)

Complex and transitive synchronization in a frustrated system of calling frogs

Aihara, I., Takeda, R., Mizumoto, T., Otsuka, T., Takahashi, T., Okuno, H. G. & Aihara, K., 2011 Mar 21, In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 83, 3, 031913.

Research output: Contribution to journal › Article

frogs

synchronism

Synchronization

Time Series Analysis

Coupled Oscillators

23 Citations (Scopus)

Emergence of hierarchical structure mirroring linguistic composition in a recurrent neural network

Hinoshita, W., Arie, H., Tani, J., Okuno, H. G. & Ogata, T., 2011 May, In : Neural Networks. 24, 4, p. 311-320 10 p.

Research output: Contribution to journal › Article

Recurrent neural networks

Linguistics

Activation Analysis

Neurons

Chemical analysis

41 Citations (Scopus)

Lyric synchronizer: Automatic synchronization system between musical audio signals and lyrics

Fujihara, H., Goto, M., Ogata, J. & Okuno, H. G., 2011 Oct, In : IEEE Journal on Selected Topics in Signal Processing. 5, 6, p. 1252-1261 10 p., 5876296.

Research output: Contribution to journal › Article

Synchronization

Acoustic waves

Transcription

1 Citation (Scopus)

Machine audition technology that listens to multiple voiced speech at once

Okuno, H. G. & Nakadai, K., 2011, In : Journal of the Institute of Electrical Engineers of Japan. 131, 3, p. 159-163 5 p.

Research output: Contribution to journal › Article

Audition