| 2025 | Interspeech | Vocal-tract model with two directions: Static design for a dummy head and dynamic design for a speaking machine. | Takayuki Arai |
| 2024 | Interspeech | Production of phrases by mechanical models of the human vocal tract. | Takayuki Arai, Ryohei Suzuki, Chandler Earp, Shinya Tsuji, Keiko Ochi |
| 2023 | Interspeech | 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 |
| 2023 | Interspeech | A Relationship Between Vocal Fold Vibration and Droplet Production. | Tsukasa Yoshinaga, Takayuki Arai, Akiyoshi Iida |
| 2022 | Interspeech | Syllable sequence of /a/+/ta/ can be heard as /atta/ in Japanese with visual or tactile cues. | Takayuki Arai, Miho Yamada, Megumi Okusawa |
| 2021 | Interspeech | Downsizing of Vocal-Tract Models to Line up Variations and Reduce Manufacturing Costs. | Takayuki Arai |
| 2021 | Interspeech | Vocal-Tract Models to Visualize the Airstream of Human Breath and Droplets While Producing Speech. | Takayuki Arai |
| 2021 | Interspeech | 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 |
| 2020 | Interspeech | Two Different Mechanisms of Movable Mandible for Vocal-Tract Model with Flexible Tongue. | Takayuki Arai |
| 2018 | Interspeech | Flexible Tongue Housed in a Static Model of the Vocal Tract With Jaws, Lips and Teeth. | Takayuki Arai |
| 2017 | Interspeech | Integrated Mechanical Model of [r]-[l] and [b]-[m]-[w] Producing Consonant Cluster [br]. | Takayuki Arai |
| 2017 | Interspeech | Vocal-Tract Model with Static Articulators: Lips, Teeth, Tongue, and More. | Takayuki Arai |
| 2016 | Interspeech | Mechanical Production of [b], [m] and [w] Using Controlled Labial and Velopharyngeal Gestures. | Takayuki Arai |
| 2015 | Interspeech | Hands-on tool producing front vowels for phonetic education: aiming for pronunciation training with tactile sensation. | Takayuki Arai |
| 2015 | Interspeech | Two extensions of umeda and teranishi's physical models of the human vocal tract. | Takayuki Arai |
| 2015 | Interspeech | Perception of an existing and non-existing L2 English phoneme behind noise by Japanese native speakers. | Mako Ishida, Takayuki Arai |
| 2014 | Interspeech | Retroflex and bunched English /r/ with physical models of the human vocal tract. | Takayuki Arai |
| 2013 | Interspeech | Physical models of the vocal tract with a flapping tongue for flap and liquid sounds. | Takayuki Arai |
| 2013 | Interspeech | On why Japanese /r/ sounds are difficult for children to acquire. | Takayuki Arai |
| 2013 | Interspeech | 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 |
| 2012 | ICASSP | Digital Pattern Playback for education in digital signal processing and speech science. | Takayuki Arai |
| 2012 | Interspeech | Vowels Produced by Sliding Three-tube Model with Different Lengths. | Takayuki Arai |
| 2012 | Interspeech | Intelligibility of speech spoken in noise/reverberation for older adults in reverberant environments. | Nao Hodoshima, Takayuki Arai, Kiyohiro Kurisu |
| 2011 | Interspeech | Physical Models Producing Vowels with Pitch Variation. | Takayuki Arai |
| 2010 | Interspeech | Mechanical vocal-tract models for speech dynamics. | Takayuki Arai |
| 2010 | Interspeech | Enhanced speech yielding higher intelligibility for all listeners and environments. | Takayuki Arai, Nao Hodoshima |
| 2010 | Interspeech | Perception of voiceless fricatives by Japanese listeners of advanced and intermediate level English proficiency. | Hinako Masuda, Takayuki Arai |
| 2009 | Interspeech | Dialectal characteristics of osaka and tokyo Japanese: analyses of phonologically identical words. | Kanae Amino, Takayuki Arai |
| 2009 | Interspeech | Sliding vocal-tract model and its application for vowel production. | Takayuki Arai |
| 2009 | Interspeech | Simple physical models of the vocal tract for education in speech science. | Takayuki Arai |
| 2008 | Interspeech | Perceptual speaker identification using monosyllabic stimuli - effects of the nucleus vowels and speaker characteristics contained in nasals. | Kanae Amino, Takayuki Arai |
| 2008 | Interspeech | Physical models of the human vocal tract with gel-type material. | Takayuki Arai |
| 2008 | Interspeech | Science workshop with sliding vocal-tract model. | Takayuki Arai |
| 2008 | Interspeech | Improving consonant identification in noise and reverberation by steady-state suppression as a preprocessing approach. | Nao Hodoshima, Wataru Yoshida, Takayuki Arai |
| 2008 | Interspeech | Perception and production of consonant clusters in Japanese-English bilingual and Japanese monolingual speakers. | Hinako Masuda, Takayuki Arai |
| 2006 | Interspeech | Steady-state suppression in reverberation: a comparison of native and nonnative speech perception. | Nao Hodoshima, Dawn M. Behne, Takayuki Arai |
| 2005 | Interspeech | The correspondences between the perception of the speaker individualities contained in speech sounds and their acoustic properties. | Kanae Amino, Tsutomu Sugawara, Takayuki Arai |
| 2005 | Interspeech | Comparing tongue positions of vowels in oral and nasal contexts. | Takayuki Arai |
| 2005 | Interspeech | 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 |
| 2005 | Interspeech | 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 |
| 2004 | Interspeech | Perceptual discrimination of prosodic types and their preliminary acoustic analysis. | Masahiko Komatsu, Tsutomu Sugawara, Takayuki Arai |
| 2003 | ICASSP | Estimating number of speakers by the modulation characteristics of speech. | Takayuki Arai |
| 2003 | Interspeech | 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 |
| 2002 | Interspeech | Duration and F0 as perceptual cues to Japanese vowel quantity. | Keisuke Kinoshita, Dawn M. Behne, Takayuki Arai |
| 2002 | Interspeech | Multi-dimensional analysis of sonority: perception, acoustics, and phonology. | Masahiko Komatsu, Shinichi Tokuma, Won Tokuma, Takayuki Arai |
| 2001 | Interspeech | Prototype of a vocal-tract model for vowel production designed for education in speech science. | Takayuki Arai, Nobuyuki Usuki, Yuji Murahara |
| 2001 | Interspeech | The relation between speech intelligibility and the complex modulation spectrum. | Steven Greenberg, Takayuki Arai |
| 2001 | Interspeech | Human language identification with reduced segmental information: comparison between monolinguals and bilinguals. | Masahiko Komatsu, Kazuya Mori, Takayuki Arai, Yuji Murahara |
| 2001 | Interspeech | Modelling the perceptual identification of Japanese consonants from LPC cepstral distances. | Masahiko Komatsu, Shinichi Tokuma, Won Tokuma, Takayuki Arai |
| 2001 | Interspeech | Using the modulation complex wavelet transform for feature extraction in automatic speech recognition. | Yasunori Momomura, Kenji Okada, Takayuki Arai, Noboru Kanedera, Yuji Murahara |
| 2000 | ICASSP | The DSP experiments for under graduate students. | Y. Fuchiwaki, Nobuyuki Usuki, Takayuki Arai, Yuji Murahara |
| 2000 | ICASSP | Modulation enhancement of speech as a preprocessing for reverberant chambers with the hearing-impaired. | Akiko Kusumoto, Takayuki Arai, Tomoko Kitamura, M. Takahashi, Yuji Murahara |
| 2000 | ICASSP | The effect of polarity inversion of speech on human perception and data hiding as an application. | Shino Sakaguchi, Takayuki Arai, Yuji Murahara |
| 2000 | Interspeech | Designing modulation filters for improving speech intelligibility in reverberant environments. | Tomoko Kitamura, Keisuke Kinoshita, Takayuki Arai, Akiko Kusumoto, Yuji Murahara |
| 2000 | Interspeech | The effect of reduced spectral information on Japanese consonant perception: comparison between L1 and L2 listeners. | Masahiko Komatsu, Won Tokuma, Shinichi Tokuma, Takayuki Arai |
| 2000 | Interspeech | Using the modulation wavelet transform for feature extraction in automatic speech recognition. | Kenji Okada, Takayuki Arai, Noburu Kanederu, Yasunori Momomura, Yuji Murahara |
| 1999 | Interspeech | Effects of hoarseness on hypernasality ratings. | Setsuko Imatomi, Takayuki Arai, Yuko Mimura, Masako Kato |
| 1999 | Interspeech | Human language identification with reduced spectral information. | Kazuya Mori, Noriaki Toba, Tomoyuki Harada, Takayuki Arai, Masahiko Komatsu, Makiko Aoyagi, Yuji Murahara |
| 1999 | Interspeech | Temporal constraints on speech intelligibility as deduced from exceedingly sparse spectral representations. | Rosaria Silipo, Steven Greenberg, Takayuki Arai |
| 1998 | ICASSP | Speech intelligibility in the presence of cross-channel spectral asynchrony. | Takayuki Arai, Steven Greenberg |
| 1998 | ICASSP | On properties of modulation spectrum for robust automatic speech recognition. | Noboru Kanedera, Hynek Hermansky, Takayuki Arai |
| 1998 | Interspeech | Speech intelligibility derived from exceedingly sparse spectral information. | Steven Greenberg, Takayuki Arai, Rosaria Silipo |
| 1997 | Interspeech | The temporal properties of spoken Japanese are similar to those of English. | Takayuki Arai, Steven Greenberg |
| 1997 | Interspeech | On the importance of various modulation frequencies for speech recognition. | Noboru Kanedera, Takayuki Arai, Hynek Hermansky, Misha Pavel |
| 1996 | Interspeech | Intelligibility of speech with filtered time trajectories of spectral envelopes. | Takayuki Arai, Misha Pavel, Hynek Hermansky, Carlos Avendao |
| 1995 | Interspeech | Analysis for palatalized articulation of [s] sounds using synthetic speech. | Takayuki Arai, Keiko Okazaki, Setsuko Imatomi, Yuichi Yoshida |
| 1994 | ICASSP | Analysis of phoneme-based features for language identification. | Kay M. Berkling, Takayuki Arai, Etienne Barnard |
| 1993 | Interspeech | A comparison of approaches to automatic language identification using telephone speech. | Yeshwant K. Muthusamy, Kay M. Berkling, Takayuki Arai, Ronald A. Cole, Etienne Barnard |