Search Results:　 1-20 of 40

  • 1

    Compression of auditory space representation during uniformly-accelerated self-motion  [in Japanese]

    寺本 渉 , 古根 史雅 , 坂本 修一 他

    聴覚研究会資料 42(1), 11-16, 2012-02-04

  • 2

    Development of an Audio Navigation System Based on Spatial Perception  [in Japanese]

    UMETSU Naoki , INOUE Hiroto , HORIUCHI Hitoshi , SATO Mie , OGURO Hisashi , KASUGA Masao

    近年,博物館や舞台,旅行ツアーなどの分野では,観賞対象に合わせて音声やBGMを提供する音声案内システムが検討されている.これらのシステムでは音響情報を実空間に整合させて提示することができ,この方法は実空間に情報を付加提示する拡張現実(AR)として知られている.しかし,ARに関する多くの研究は,主に視覚情報の提示方法について注目したものであり,聴覚情報と組み合わせた提示方法の研究は未だ十分とはいえな …

    ITE Technical Report 35(39), 41-44, 2011-10-06

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  • 3

    A study on influence of auditory information on distance perception via two-dimensional display  [in Japanese]

    SASAKI Yuri , ABE Koji , TAKANE Shouichi , SATO Sojun , WATANABE Kanji

    情報提示機器を通じて与えられる視聴覚情報が視聴者にもたらす空間印象には,それぞれのメディアの提示条件が大きく影響を与えると考えられる.本報告では,映像から得られる印象に音が与える影響の一検討として,視聴覚刺激をそれぞれ二次元ディスプレイとヘッドホンで提示し,映像中の対象物までの知覚距離が音によってどのような影響を受けるのかを検討した.視聴覚刺激には太鼓を叩いている映像と音を使用した.実験の結果,仮 …

    Technical report of IEICE. EA 111(175), 67-72, 2011-08-02

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  • 4

    The primary auditory processing during emotional speech perception : A magnetoencephalography study  [in Japanese]

    YAGURA Haruko , TONOIKE Mitsuo , IWAKI Sunao , NAKAGAWA Seiji , OGINO Satoshi , MURATA Tsutomu

    「喜び」,「悲しみ」などの特定の感情が込められた音声の聴取時の聴覚初期情報処理過程を明らかにするために,時間分解能と空間分解能に優れた脳磁界計測を用いて検証を行った。計測には1)情動音声認識課題,2)語頭音認識課題 3)音声無視課題の3条件を設定し,1)に関連する初期聴覚情報処理過程の情動処理に関連する潜時を統計的に検定した。その結果,刺激開始後の潜時0.16-0.18sにおいて,右上側頭回後部付 …

    IEICE technical report. Speech 111(153), 17-22, 2011-07-14

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  • 5

    Effect of Limited Bandwidth on Auditory Presence and Spatial Impression  [in Japanese]

    TANIGUCHI Takashi , OODE Satoshi , ANDO Akio

    音響コンテンツの再生周波数帯域を制限することで,音特徴の知覚的印象および臨場感・空間印象がどのように変化するかを調べるために,主観評価実験を行った.市販のDVDに収録されているライブ演奏や自然環境音など4種類の5.1ch音源を使用し,デジタルミキサーによって再生周波数帯域を,広帯域(DVD品質),中帯域(250Hz-8kHz),狭帯域(500Hz-4kHz)の3段階に操作した.実験には健徳の20代 …

    Technical report of IEICE. CQ 111(132), 5-10, 2011-07-07

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  • 6

    Temporal Characteristics of the Ventriloquism Effect  [in Japanese]

    Kobayashi Maori , Fujii Shinji , Iwaya Yukio , Sakamoto Shuichi , Suzuki Yoiti

    … The perception of the spatial location of an auditory stimulus can be captured by a spatially disparate visual stimulus, a phenomenon known as the ventriloquism effect. … Many studies have shown temporal and spatial dependency of this phenomenon but its temporal dynamics are not fully understood. …

    Transactions of the Virtual Reality Society of Japan 16(1), 93-97, 2011-03-31

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  • 7

    Sound reproduction based on multi-channel inverse filtering and WFS

    KAMADO Noriyoshi , SARUWATARI Hiroshi , SHIKANO Kiyohiro

    … By using the WFS, the proposed method overcomes the compensation limitation of auditory distance and azimuth perception outside of the control-point. … The results of computer simulations revealed that the proposed method balances these goals and has wide applicability in the spatial domain with high accuracy of reproduction for both free-field conditions and a simulation model with room reflection. …

    Technical report of IEICE. EA 110(285), 55-60, 2010-11-11

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  • 8

    Distortions of auditory space during uniformly-accelerated self-motion  [in Japanese]

    古根 史雅 , 寺本 渉 , 坂本 修一 他

    聴覚研究会資料 40(8), 689-692, 2010-10-16

  • 9

    Exploring multimodal integration in two functions of perception(Spatio-temporal integration of multimodal sensations,Symposium 2 at the 27th Annual Meeting)

    SAKURAI Kenzo

    … Focusing on the topics of event perception and self-motion perception, in this paper, I introduce our recent research on the integration of visual information with auditory and vestibular information. … We have been investigating the limits of audio/visual integration by modifying conventional stream/bounce displays in spatial and temporal domains. …

    The Japanese journal of psychonomic science. 28(1), 130-134, 2009-09-30

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  • 10

    Spatial perception of audio-visual information in peripheral vision  [in Japanese]

    KANG DaeGee , MIYAUCHI Ryota , IWAYA Yukio , SUZUKI Yoiti

    視聴覚刺激の空間的なずれが知覚空間への事象の配置に与える影響を調べるために心理物理実験を行った.実験では視覚刺激と聴覚刺激とを同時に提示し,二つの刺激が空間的にどれくらい離れていると感じられるかを判断させた.視覚刺激は-70゜,-40゜,-20゜,0゜,20゜,40゜,70゜の7方向,聴覚刺激は視覚刺激を中心にして-20゜〜20゜まで5゜間隔で9方向から提示した.実験参加者には、視覚刺激と聴覚刺激 …

    Technical report of IEICE. HIP 108(356), 117-122, 2008-12-11

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  • 11

    Auditory Artifacts due to Switching Head-Related Transfer Functions of a Dynamic Virtual Auditory Display

    OTANI Makoto , HIRAHARA Tatsuya

    … Auditory artifacts due to switching head-related transfer functions (HRTFs) are investigated, using a software-implemented dynamic virtual auditory display (DVAD) developed by the authors. … The DVAD responds to a listener's head rotation using a head-tracking device and switching HRTFs to present a highly realistic 3D virtual auditory space to the listener. … Another matter of concern is the auditory artifact in DVADs caused by switching HRTFs. …

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 91(6), 1320-1328, 2008-06-01

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  • 12

    Separation between Sound and Light Enhances Audio-Visual Prior Entry Effect

    HONGOH Yuki , KITA Shinichi , SOETA Yoshiharu

    … We examined how spatial disparity between the auditory and visual stimuli modulated the audio-visual (A-V) prior entry effect. … Spatial and temporal proximity of multisensory stimuli are crucial factors for multisensory perception in most cases (e. … In order to examine the effect of the spatial disparity on the A-V prior entry effect, six loudspeakers and two light emitting diodes (LEDs) were used as stimuli. …

    IEICE Transactions on Information and Systems 91(6), 1641-1648, 2008-06-01

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  • 13

    Perception of other's gaze directs to objects  [in Japanese]

    SUKEMIYA Haru , MIURA Kayo

    Human Interface 10(1), 47-52, 2008-05-12

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  • 14

    Perception of other's gaze directs to objects  [in Japanese]

    Sukemiya Haru , Miura Kayo

    … We investigated the perception of other's gaze directed to an auditory or a visual target using two tasks: localizing the perceived point where the gaze was directed and discriminating between direct and averted gazes to a target. … The gaze to an auditory or a visual target presented at 30 degrees induced each 2.5 to 5 degrees or 9 to 10 degrees shifts to the inside for "direct" judgment. …

    Technical report of IEICE. HIP 108(27), 47-52, 2008-05-05

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  • 15

    Perception of other's gaze directs to objects  [in Japanese]

    Sukemiya Haru , Miura Kayo

    … We investigated the perception of other's gaze directed to an auditory or a visual target using two tasks: localizing the perceived point where the gaze was directed and discriminating between direct and averted gazes to a target. … The gaze to an auditory or a visual target presented at 30 degrees induced each 2.5 to 5 degrees or 9 to 10 degrees shifts to the inside for "direct" judgment. …

    Technical report of IEICE. HCS 108(26), 47-52, 2008-05-05

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  • 16

    Effects of frequency-modulated sounds corresponding to self-motion acceleration on the magnitude of self-motion perception  [in Japanese]

    SETO Mikio , SAKAMOTO Shuichi , KOBAYASHI Maori , SAKURAI Kenzo , GYOBA Jiro , SUZUKI Yoiti

    自己運動知覚ほマルチモーダル知覚現象の一例である.近年の研究では,聴覚情報が自己運動知覚に影響を与えることが報告されている.しかしながら,従来の聴覚と自己運動知覚の相互作用に関する研究では,主に音源の定位位置変化が自己運動知覚に及ぼす影響に関する報告がほとんどである.本研究でほ,移動音源め持っ要因の1つである周波数変化に着目し,自己運動加速度ベクトルに対応して周波数変化する刺激によって自己運動知覚 …

    Technical report of IEICE. HIP 107(369), 153-158, 2007-11-29

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  • 17

    Audiovisual multisensory integration

    Spence Charles

    … Over the last 50 years or so, a large body of empirical research has demonstrated the importance of a variety of low-level spatiotemporal factors in the multisensory integration of auditory and visual stimuli (as, for example, indexed by research on the ventriloquism effect). … Here, the evidence highlighting the contribution of both spatial and temporal factors to multisensory integration is briefly reviewed. …

    Acoustical science and technology 28(2), 61-70, 2007-03-00

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  • 18

    Effect of spatial orientation on cross-modal double-flash illusion  [in Japanese]

    HIRATA Ai , SHIGEMASU Hiroaki , MATSUZAKI Naoyuki , KITAZAKI Michiteru

    聴覚性ダブルフラッシュ錯視とは,1回の視覚フラッシュと同時に複数回の破裂音を提示すると,視覚フラッシュが複数回に知覚される現象である(Shams,et al,2000).この視覚刺激を左右に2つ同時提示し,音源位置を変化させたところ,視・聴覚刺激の定位が同じ場合にダブルフラッシュ効果が増大した.また,聴覚刺激の代わりに触覚刺激(指への振動)を与えたところ,同様の効果が得られた.したがって,共通した …

    Technical report of IEICE. Multimedia and virtual environment 106(234), 67-71, 2006-09-05

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  • 19

    The roles of visual proprioceptive in formation in our perception revealed by the experiments with virtual reality(Forum: Experiments on the physicality)  [in Japanese]

    TERAMOTO Wataru

    … Many psychological studies in healthy and neurological disordered participants indicate the involvement of proprioceptive information in various aspects of perception and action. … We investigated the effect of the visual proprioceptive information on spatial and temporal sensory processing, using an immersive virtual reality system (CAVE) which can properly create large field three-dimensional visual stimuli essential for visual proprioception. …

    The Japanese journal of psychonomic science. 24(1), 83-89, 2005-09-30

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  • 20

    Analysis of brain activation by visually and auditory stimulation after visually and auditory simultaneous stimulation using fMRI(<Special Issue>Electrical and Electronic Engineering)  [in Japanese]

    YAMAMOTO Kaori , TACHIBANA Jun , UCHIDA Kenya , ISHIDA Tomohiro , MAENO Masato , YANASHIMA Kenji , UCHIYAMA Akihiko , Magatani Kazushige

    … It is said that the auditory spatial perception is strongly affected by visual cues, and when auditory and visual stimulation are given form different positions simultaneously, the source position of sound is mislead to the direction of visual stimulation. … The purpose of this study is analyzing the brain response on f-MRI by simultaneous stimulation of auditory and visually sensors. …

    Proceedings of the School of Information Technology and Electronics, Tokai University 4(2), 91-96, 2005-03-31

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