A comparison of approaches to automatic language identification using telephone speech. - Yeshwant K. Muthusamy; Kay M. Berkling; Takayuki Arai; Ronald A. Cole; Etienne Barnard (EUROSPEECH, 1993)

Analysis of phoneme-based features for language identification. - Kay M. Berkling; Takayuki Arai; Etienne Barnard (ICASSP (1), 1994)

Analysis for palatalized articulation of [s] sounds using synthetic speech. - Takayuki Arai; Keiko Okazaki; Setsuko Imatomi; Yuichi Yoshida (EUROSPEECH, 1995)

Automatic Language Identification Using Sequential Information of Phonemes. - Takayuki Arai (IEICE Trans. Inf. Syst., 1995)

Intelligibility of speech with filtered time trajectories of spectral envelopes. - Takayuki Arai; Misha Pavel; Hynek Hermansky; Carlos Avendaño (ICSLP, 1996)

The temporal properties of spoken Japanese are similar to those of English. - Takayuki Arai; Steven Greenberg (EUROSPEECH, 1997)

On the importance of various modulation frequencies for speech recognition. - Noboru Kanedera; Takayuki Arai; Hynek Hermansky; Misha Pavel (EUROSPEECH, 1997)

Reconstruction of a signal using the spectrum-reversal technique. - Takayuki Arai; Yuichi Yoshida (IEEE Trans. Signal Process., 1997)

Speech intelligibility in the presence of cross-channel spectral asynchrony. - Takayuki Arai; Steven Greenberg (ICASSP, 1998)

On properties of modulation spectrum for robust automatic speech recognition. - Noboru Kanedera; Hynek Hermansky; Takayuki Arai (ICASSP, 1998)

Speech intelligibility derived from exceedingly sparse spectral information. - Steven Greenberg; Takayuki Arai; Rosaria Silipo (ICSLP, 1998)

Effects of hoarseness on hypernasality ratings. - Setsuko Imatomi; Takayuki Arai; Yuko Mimura; Masako Kato (EUROSPEECH, 1999)

Human language identification with reduced spectral information. - Kazuya Mori; N. Toba; T. Harada; Takayuki Arai; Masahiko Komatsu; Makiko Aoyagi; Yuji Murahara (EUROSPEECH, 1999)

Temporal constraints on speech intelligibility as deduced from exceedingly sparse spectral representations. - Rosaria Silipo; Steven Greenberg; Takayuki Arai (EUROSPEECH, 1999)

On the relative importance of various components of the modulation spectrum for automatic speech recognition. - Noboru Kanedera; Takayuki Arai; Hynek Hermansky; Misha Pavel (Speech Commun., 1999)

The DSP experiments for under graduate students. - Y. Fuchiwaki; Nobuyuki Usuki; Takayuki Arai; Yuji Murahara (ICASSP, 2000)

Modulation enhancement of speech as a preprocessing for reverberant chambers with the hearing-impaired. - Akiko Kusumoto; Takayuki Arai; Tomoko Kitamura; M. Takahashi; Yuji Murahara (ICASSP, 2000)

The effect of polarity inversion of speech on human perception and data hiding as an application. - Shino Sakaguchi; Takayuki Arai; Yuji Murahara (ICASSP, 2000)

Designing modulation filters for improving speech intelligibility in reverberant environments. - Tomoko Kitamura; Keisuke Kinoshita; Takayuki Arai; Akiko Kusumoto; Yuji Murahara (INTERSPEECH, 2000)

The effect of reduced spectral information on Japanese consonant perception: comparison between L1 and L2 listeners. - Masahiko Komatsu; Won Tokuma; Shinichi Tokuma; Takayuki Arai (INTERSPEECH, 2000)

Using the modulation wavelet transform for feature extraction in automatic speech recognition. - Kenji Okada; Takayuki Arai; Noburu Kanederu; Yasunori Momomura; Yuji Murahara (INTERSPEECH, 2000)

Prototype of a vocal-tract model for vowel production designed for education in speech science. - Takayuki Arai; Nobuyuki Usuki; Yuji Murahara (INTERSPEECH, 2001)

The relation between speech intelligibility and the complex modulation spectrum. - Steven Greenberg; Takayuki Arai (INTERSPEECH, 2001)

Human language identification with reduced segmental information: comparison between monolinguals and bilinguals. - Masahiko Komatsu; Kazuya Mori; Takayuki Arai; Yuji Murahara (INTERSPEECH, 2001)

Modelling the perceptual identification of Japanese consonants from LPC cepstral distances. - Masahiko Komatsu; Shinichi Tokuma; Won Tokuma; Takayuki Arai (INTERSPEECH, 2001)

Using the modulation complex wavelet transform for feature extraction in automatic speech recognition. - Yasunori Momomura; Kenji Okada; Takayuki Arai; Noboru Kanedera; Yuji Murahara (INTERSPEECH, 2001)

Japanese Mora-Timing: A Review. - Natasha Warner; Takayuki Arai (Phonetica, 2001)

Duration and F0 as perceptual cues to Japanese vowel quantity. - Keisuke Kinoshita; Dawn M. Behne; Takayuki Arai (INTERSPEECH, 2002)

Multi-dimensional analysis of sonority: perception, acoustics, and phonology. - Masahiko Komatsu; Shinichi Tokuma; Won Tokuma; Takayuki Arai (INTERSPEECH, 2002)

Estimating number of speakers by the modulation characteristics of speech. - Takayuki Arai (ICASSP (2), 2003)

Improving speech intelligibility by steady-state suppression as pre-processing in small to medium sized halls. - Nao Hodoshima; Takayuki Arai; Tsuyoshi Inoue; Keisuke Kinoshita; Akiko Kusumoto (INTERSPEECH, 2003)

Visualization of Brain Activities of Single-Trial and Averaged Multiple-Trials MEG Data. - Yoshio Kon'no; Jianting Cao; Takayuki Arai; Tsunehiro Takeda (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

Perceptual discrimination of prosodic types and their preliminary acoustic analysis. - Masahiko Komatsu; Tsutomu Sugawara; Takayuki Arai (INTERSPEECH, 2004)

What are the Essential Cues for Understanding Spoken Language? - Steven Greenberg; Takayuki Arai (IEICE Trans. Inf. Syst., 2004)

The correspondences between the perception of the speaker individualities contained in speech sounds and their acoustic properties. - Kanae Amino; Tsutomu Sugawara; Takayuki Arai (INTERSPEECH, 2005)

Comparing tongue positions of vowels in oral and nasal contexts. - Takayuki Arai (INTERSPEECH, 2005)

Steady-state pre-processing for improving speech intelligibility in reverberant environments: evaluation in a hall with an electrical reverberator. - Nahoko Hayashi; Takayuki Arai; Nao Hodoshima; Yusuke Miyauchi; Kiyohiro Kurisu (INTERSPEECH, 2005)

A preprocessing technique for improving speech intelligibility in reverberant environments: the effect of steady-state suppression on elderly people. - Yusuke Miyauchi; Nao Hodoshima; Keiichi Yasu; Nahoko Hayashi; Takayuki Arai; Mitsuko Shindo (INTERSPEECH, 2005)

Modulation enhancement of speech by a pre-processing algorithm for improving intelligibility in reverberant environments. - Akiko Kusumoto; Takayuki Arai; Keisuke Kinoshita; Nao Hodoshima; Nancy Vaughan (Speech Commun., 2005)

Steady-state suppression in reverberation: a comparison of native and nonnative speech perception. - Nao Hodoshima; Dawn M. Behne; Takayuki Arai (INTERSPEECH, 2006)

Effects of the Phonological Contents on Perceptual Speaker Identification. - Kanae Amino; Takayuki Arai; Tsutomu Sugawara (Speaker Classification (2), 2007)

Perception of consonant clusters in Japanese native speakers: influence of foreign language learning. - Hinako Masuda; Takayuki Arai (ExLing, 2008)

Perceptual speaker identification using monosyllabic stimuli - effects of the nucleus vowels and speaker characteristics contained in nasals. - Kanae Amino; Takayuki Arai (INTERSPEECH, 2008)

Physical models of the human vocal tract with gel-type material. - Takayuki Arai (INTERSPEECH, 2008)

Science workshop with sliding vocal-tract model. - Takayuki Arai (INTERSPEECH, 2008)

Improving consonant identification in noise and reverberation by steady-state suppression as a preprocessing approach. - Nao Hodoshima; Wataru Yoshida; Takayuki Arai (INTERSPEECH, 2008)

Perception and production of consonant clusters in Japanese-English bilingual and Japanese monolingual speakers. - Hinako Masuda; Takayuki Arai (INTERSPEECH, 2008)

Dialectal characteristics of osaka and tokyo Japanese: analyses of phonologically identical words. - Kanae Amino; Takayuki Arai (INTERSPEECH, 2009)

Sliding vocal-tract model and its application for vowel production. - Takayuki Arai (INTERSPEECH, 2009)

Simple physical models of the vocal tract for education in speech science. - Takayuki Arai (INTERSPEECH, 2009)

Mechanical vocal-tract models for speech dynamics. - Takayuki Arai (INTERSPEECH, 2010)

Enhanced speech yielding higher intelligibility for all listeners and environments. - Takayuki Arai; Nao Hodoshima (INTERSPEECH, 2010)

Perception of voiceless fricatives by Japanese listeners of advanced and intermediate level English proficiency. - Hinako Masuda; Takayuki Arai (INTERSPEECH, 2010)

3D sound field recording and reproducing system including sound source orientation. - Toshimasa Suzuki; Hirofumi Nakajima; Hideo Tsuru; Takayuki Arai; Kazuhiro Nakadai (IUCS, 2010)

Using Steady-State Suppression to Improve Speech Intelligibility in Reverberant Environments for Elderly Listeners. - Takayuki Arai; Nao Hodoshima; Keiichi Yasu (IEEE Trans. Speech Audio Process., 2010)

A Case Study on Comparison of Male and Female Vowel Formants by Native Speakers of Korean. - Takako Igeta; Takayuki Arai (ICPhS, 2011)

Physical Models Producing Vowels with Pitch Variation. - Takayuki Arai (INTERSPEECH, 2011)

Digital Pattern Playback for education in digital signal processing and speech science. - Takayuki Arai (ICASSP, 2012)

Vowels Produced by Sliding Three-tube Model with Different Lengths. - Takayuki Arai (INTERSPEECH, 2012)

Intelligibility of speech spoken in noise/reverberation for older adults in reverberant environments. - Nao Hodoshima; Takayuki Arai; Kiyohiro Kurisu (INTERSPEECH, 2012)

Hands-on speech science exhibition for children at a science museum. - Takayuki Arai; Kanae Amino; Mee Sonu; Keiichi Yasu; Takako Igeta; Kanako Tomaru; Marino Kasuya (WOCCI, 2012)

Errata to "Using Steady-State Suppression to Improve Speech Intelligibility in Reverberant Environments for Elderly Listeners". - Takayuki Arai; Nao Hodoshima; Keiichi Yasu (IEEE Trans. Speech Audio Process., 2012)

An instability condition for uncertain systems toward robust bifurcation analysis. - Masaki Inoue; Jun-ichi Imura; Kenji Kashima; Takayuki Arai; Kazuyuki Aihara (ECC, 2013)

Physical models of the vocal tract with a flapping tongue for flap and liquid sounds. - Takayuki Arai (INTERSPEECH, 2013)

On why Japanese /r/ sounds are difficult for children to acquire. - Takayuki Arai (INTERSPEECH, 2013)

Weighting of acoustic cues shifts to frication duration in identification of fricatives/affricates when auditory properties are degraded due to aging. - Keiichi Yasu; Takayuki Arai; Kei Kobayashi; Mitsuko Shindo (INTERSPEECH, 2013)

Saddle-node bifurcation and its robustness analysis: A mechanism for inducing pluripotency in stem cell. - Masaki Inoue; Jun-ichi Imura; Takayuki Arai; Kenji Kashima; Kazuyuki Aihara (CDC, 2014)

Retroflex and bunched English /r/ with physical models of the human vocal tract. - Takayuki Arai (INTERSPEECH, 2014)

Physical models of the vocal tract sound different with the same shape but different temporal characteristics and vice versa. - Takayuki Arai (ICPhS, 2015)

Hands-on tool producing front vowels for phonetic education: aiming for pronunciation training with tactile sensation. - Takayuki Arai (INTERSPEECH, 2015)

Two extensions of umeda and teranishi's physical models of the human vocal tract. - Takayuki Arai (INTERSPEECH, 2015)

Perception of an existing and non-existing L2 English phoneme behind noise by Japanese native speakers. - Mako Ishida; Takayuki Arai (INTERSPEECH, 2015)

Mechanical Production of [b], [m] and [w] Using Controlled Labial and Velopharyngeal Gestures. - Takayuki Arai (INTERSPEECH, 2016)

Chiba and Kajiyama measured 3D configurations of the human vocal tract and made physical models based on the measurements. - Takayuki Arai (HSCR, 2017)

Integrated Mechanical Model of [r]-[l] and [b]-[m]-[w] Producing Consonant Cluster [br]. - Takayuki Arai (INTERSPEECH, 2017)

Vocal-Tract Model with Static Articulators: Lips, Teeth, Tongue, and More. - Takayuki Arai (INTERSPEECH, 2017)

Flexible Tongue Housed in a Static Model of the Vocal Tract With Jaws, Lips and Teeth. - Takayuki Arai (INTERSPEECH, 2018)

Output Voltage Ripple Compensation for Switching Power Supply in EMI Reduction Method with Theoretical Analysis. - Takayuki Arai; Natsuko Miki; Yifei Sun; Nobukazu Takai (ISPACS, 2018)

Sound sources used in speech production research with physical models of the human vocal tract. - Takayuki Arai (HSCR, 2019)

Plosive (de-)voicing and f0 perturbations in Tokyo Japanese: Positional variation, cue enhancement, and contrast recovery. - Jiayin Gao; Takayuki Arai (J. Phonetics, 2019)

Two Different Mechanisms of Movable Mandible for Vocal-Tract Model with Flexible Tongue. - Takayuki Arai (INTERSPEECH, 2020)

Downsizing of Vocal-Tract Models to Line up Variations and Reduce Manufacturing Costs. - Takayuki Arai (Interspeech, 2021)

Vocal-Tract Models to Visualize the Airstream of Human Breath and Droplets While Producing Speech. - Takayuki Arai (Interspeech, 2021)

Comparison Between Lumped-Mass Modeling and Flow Simulation of the Reed-Type Artificial Vocal Fold. - Rafia Inaam; Tsukasa Yoshinaga; Takayuki Arai; Hiroshi Yokoyama; Akiyoshi Iida (Interspeech, 2021)

Effect of prior exposure on the perception of Japanese vowel length contrast in reverberation for nonnative listeners. - Eri Osawa; C. T. Justine Hui; Yusuke Hioka; Takayuki Arai (Speech Commun., 2021)

Syllable sequence of /a/+/ta/ can be heard as /atta/ in Japanese with visual or tactile cues. - Takayuki Arai; Miho Yamada; Megumi Okusawa (INTERSPEECH, 2022)

Comparing /b/ and /d/ with a Single Physical Model of the Human Vocal Tract to Visualize Droplets Produced while Speaking. - Takayuki Arai; Tsukasa Yoshinaga; Akiyoshi Iida (INTERSPEECH, 2023)

A Relationship Between Vocal Fold Vibration and Droplet Production. - Tsukasa Yoshinaga; Takayuki Arai; Akiyoshi Iida (INTERSPEECH, 2023)

A Study on the Classification of OT Security Risk Mitigation Measures. - Hiroo Kanamaru; Junya Fujita; Takayuki Arai (SICE, 2023)

Reduction of Surface Reflection on Dielectric Lens Antenna by Matching Periodic Square-Pillars in 300-GHz Band. - Bazilah Baharom; Ryota Ishihara; Yoshiki Sugimoto; Kunio Sakakibara; Nobuyoshi Kikuma; Takayuki Arai; Takayoshi Suganuma; Tomohiro Saito (IEEE Access, 2023)

Production of phrases by mechanical models of the human vocal tract. - Takayuki Arai; Ryohei Suzuki; Chandler Earp; Shinya Tsuji; Keiko Ochi (INTERSPEECH, 2024)

Imparting Anti-Fingerprint Properties to Moth-Eye Films Using Fingerprint Oils Absorbing Coating Materials. - Hiroki Hoshino; Kentaro Kusama; Takayuki Arai (IEICE Trans. Electron., 2025)

The impact of first and second formant variations on vowel identification among elderly Japanese listeners. - C. T. Justine Hui; Takayuki Arai (Speech Commun., 2025)

Role of language familiarity in understanding speech in noise under various acoustic environments. - C. T. Justine Hui; Hinako Masuda; Eri Osawa; Takayuki Arai; Catherine I. Watson; Yusuke Hioka (Speech Commun., 2025)