1) T. Igeta and T. Arai, ``A study on listening and word recognition by Japanese native speakers and problem of loanwords' pronunciation by Korean Japanese learners,'' Japanese Cultural Studies, pp. 419-436, Jan. 2011 (in Japanese).
[Abstract] [PDF (614 kB)]

2) T. Arai, C. Michimata and H. Kamata, "Speech perception experiment using binaural integration of phonemic and prosodic information," Acoustical Science and Technology, Vol. 32, No. 1, pp.34-36, Jan. 2011.
[Abstract] [PDF (100 kB)]

3) T. Igeta and T. Arai, ``A case study on comparison of male and female vowel formants by native speakers of Korean,'' Proc. of the International Congress of Phonetic Sciences (ICPhS), pp. 934-937, Hong Kong, 2011.
[Abstract] [PDF (256 kB)]

4) T. Arai, ``Physical models producing vowels with pitch variation,'' Proc. of the Interspeech, pp. 3309-3310, Florence, Aug. 2011 (Show and Tell Award).
[Abstract] [PDF (406 kB)]

5) K. Tomaru and T. Arai, ``Are phonemes more perceptible than allophones? The case of English listener's perception of English stops,'' J. Phonetic Soc. Jpn., Vol. 15, No. 2, p. 91, May 2011 (in Japanese).
[Abstract] [PDF (379 kB)]

6) T. Arai, ``Learning acoustic phonetics by listening to sounds,'' Trans. Tech. Comm. Education in Acoustics, The Acoustical Society of Japan, Vol. 6, No. 1, EDU2011-07, pp. 33-38, Jan. 2011 (in Japanese).
[Abstract] [PDF (782 kB)]

7) K. Kurisu, S. Nakamura, K. Yasu and T. Arai, ``Listening difficulty of the transmitted speech and its SOR: An evaluation tool for acoustic system tuning,'' Trans. on Tech. Comm. on Architectural Acoustics, The Acoustical Society of Japan, Vol. AA2011-47, pp. 1-9, Dec. 2011 (in Japanese).
[Abstract] [PDF (4.0 MB)]

8) T. Igeta, M.Sonu and T. Arai, ``Acoustic characteristics of korean vowels by Seoul Korean young adult speaker: A study of perception experiment,'' Trans. Tech. Comm. Psychol. Physiol. Acoust., The Acoustical Society of Japan, Vol. 41, No. 7, pp. 541-545, Oct. 2011 (in Japanese).
[Abstract] [PDF (1.9 MB)]

9) T. Arai, ``Education in acoustics and speech science using acoustic tubes,'' IEICE Technical Report, Vol. SP2011-38, pp. 47-50, Jun. 2011 (in Japanese, Invited Talk).
[Abstract] [PDF (1.7 MB)]

10) N. Hodoshima, T. Arai and K. Kurisu, ``Study on speech production that is suitable for speech announcements in noisy/reverberant environment,'' IEICE Technical Report, Vol. SP2011-40, pp. 57-61, Jun. 2011 (in Japanese).
[Abstract] [PDF (2.2 MB)]

11) K. Yasu, T. Arai, K. Kobayashi and M. Shindo, ``Cue trading in the perception of initial fricatives/affricates: Focusing on duration and amplitude of frication,'' Proc. of the General Meeting of the Phonetic Society of Japan, pp. 109-114, Sep. 2011 (in Japanese).
[Abstract] [PDF (910 kB)]

12) T. Igeta and T. Arai, ``Formant measurement of vowels spoken by Korean Seoul dialect speakers: A case study for reviewing vowel system,'' Proc. Spring Meet. Acoust. Soc. Jpn., pp. 463-466, 2011 (in Japanese).
[Abstract] [PDF (417 kB)]

13) H. Masuda and T. Arai, ``Perception of English voiceless fricatives by Japanese and English native listeners under various signal-to-noise ratios,'' Proc. Spring Meet. Acoust. Soc. Jpn., pp. 471-474, Mar. 2011.
[Abstract] [PDF (231 kB)]

14) T. Arai, ``Exhibition of vocal-tract models at the Hitachi Civic Center Science Museum,'' Proc.  Spring Meet. Acoust. Soc. Jpn., pp.1587-1590,2011 (in Japanese).
[Abstract] [PDF (543 kB)]

15) H. Sato, M. Ueda, Y. Oikawa and T. Arai, ``Effect of sound field and speaking rate on word recognition scores with high-word-familiarity words.,'' Proc. Spring Meet. Acoust. Soc. Jpn., pp. 1597-1598, 2011 (in Japanese).
[Abstract] [PDF (177 kB)]

16) M. Ueda, H. Sato, Y. Oikawa and T. Arai, ``Factor of measurement error on word recognition scores with high-word-familiarity words,'' Proc. Spring Meet. Acoust. Soc. Jpn., pp 1599-1600, Mar. 2011 (in Japanese).
[Abstract] [PDF (206 kB)]

17) K. Yasu, H. Yamazaki, T. Arai, K. Kobayashi and M. Shindo, ``Identification of voiceless fricatives/affricates at word-initial and word-medial positions by young normal hearing listeners: Comparison with elderly listeners' identification test,'' Proc. Spring Meet. Acoust. Soc. Jpn., pp. 1613-1616, Mar. 2011 (in Japanese).
[Abstract] [PDF (387 kB)]

18) K. Pek, T. Arai and N. Kanedera, ``Voice activity detection in noisy environments using modulation spectrum and its performance in a subtitle-making system,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 147-150, Sep. 2011.
[Abstract] [PDF (505 kB)]

19) N. Hodoshima, T. Arai and K. Kurisu, ``Study on speech production that is intelligible for elderly listeners in noisy/reverberant public spaces,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 297-298, 2011 (in Japanese).
[Abstract] [PDF (427 kB)]

20) T. Arai, ``Producing vowels with sliding three-tube model: Effects of vocal-tract length and fundamental frequency,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 299-302, Sep. 2011.
[Abstract] [PDF (563 kB)]

21) M. Takeda, T. Arai, T. Amitani, K. Kurisu and K. Yasu, ``Intelligibility of speech processed by simple algorithm for steady-state suppression in reverberant environments,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 399-402, 2011 (in Japanese).
[Abstract] [PDF (363 kB)]

22) T. Igeta, M. Sonu and T. Arai, ``Acoustical characteristics of vowel by Seoul Korean young adult speaker: Focused on the contrast on the back-vowel pairs,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 415-416, 2011 (in Japanese).
[Abstract] [PDF (372 kB)]

23) S. Murase and T. Arai, ``The use of water on the surface of the ultrasound probe for practicing pronunciation,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 419-422, 2011 (in Japanese).
[Abstract] [PDF (386 kB)]

24) K. Yasu, T. Arai, K. Kobayashi and M. Shindo, Y. Yamazaki, ``Cue trading in fricatives and affricates: Focusing on rise time of frication and preceding silent interval,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 549-552, Sep. 2011 (in Japanese).
[Abstract] [PDF (337 kB)]

25) T. Endoh, T. Arai, and K. Yasu, K. Kobayashi, M. Shindo, ``Relationship between spread of auditory-filter-bandwidth near 2 kHz and speech discrimination/identification of monosyllables /de/, /ge/: Comparison between young and elderly participants.'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 565-566, 2011 (in Japanese).
[Abstract] [PDF (324 kB)]

26) K. Tomaru and T. Arai, ``Effects of linguistic contexts on discrimination of Japanese fricative allophones,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 575-588, 2011 (in Japanese).
[Abstract] [PDF (308 kB)]

27) T. Arai, ``Reed-type sound sources with various fundamental frequencies for physical models of the human vocal tract,'' Proc. Autumn Meet. Acoust. Soc. Jpn., pp. 1411-1414, Sep. 2011 (in Japanese).
[Abstract] [PDF (451 kB)]

28) K. Amino, T. Osanai, T. Kamada, H. Makinae and T. Arai, ``Historical and procedural overview of forensic speaker recognition as a science,'' Forensic Speaker Recognition: Law Enforcement and Counter-Terrorism, Patil, H., and Neustein, A. (Eds.), Springer, New York, pp. 275-308, Oct. 2011.
[Abstract] [PDF]

29) K. Amino, T. Osanai, T. Kamada, H. Makinae and T. Arai, ``Effects of the phonological contents and transmission channels on forensic speaker recognition,'' Forensic Speaker Recognition: Law Enforcement and Counter-Terrorism, Patil, H., and Neustein, A. (Eds.), Springer, New York, pp. 275-308, Oct. 2011.
[Abstract] [PDF]