Search Results 1-20 of 146

  • Flexible Pneumatic Bending Actuator for a Robotic Tongue

    Endo Nobutsuna , Kizaki Yuta , Kamamichi Norihiro

    … <p>There are not many physical models of oral and laryngeal systems for human speech movement in both computer simulators and mechanical simulators. … In particular, there is no robot tongue mechanism that completely reproduces the deformation motion of the human tongue. … The human tongue is an aggregate of muscles devoid of a skeleton. …

    Journal of Robotics and Mechatronics 32(5), 894-902, 2020


  • Vocal-tract spectrum estimation method affects the articulatory compensation in formant transformed auditory feedback

    Uezu Yasufumi , Hiroya Sadao , Mochida Takemi

    … In this paper, we investigate how different vocal-tract spectrum estimation methods in real-time formant TAFs affect the compensatory response of formant frequencies to perturbations. … A phase equalization-based autoregressive exogenous model (PEAR) is applied to the TAF system as a formant estimation method that can estimate the formant frequency more accurately and robustly than LPC can. …

    Acoustical Science and Technology 41(5), 720-728, 2020


  • The effect of sex hormones on the interaction between synaptic adhesion proteins concerned with sociality  [in Japanese]

    Yagishita-Kyo Nan , Harada Minami , Uekita Tomoko , Maruyama Kei , Ikai Yuki , Koshimoto Chihiro , Yagishita Sosuke

    … Degus are medium-sized diurnal rodents, and communicate with each other by using more than 20 vocal repertoires. … Interestingly, a particular SAM of degus shared more than 90% homology with human sequence. …

    Proceedings for Annual Meeting of The Japanese Pharmacological Society 92(0), 2-P-003, 2019


  • Source-filter interaction in phonation: A study using vocal-tract data of a soprano singer

    Kaburagi Tokihiko , Ando Momoyo , Uezu Yasufumi

    … <p>We simulated acoustic interaction between the voice source system in the larynx and the acoustic filter of the vocal tract. … The vocal tract of a soprano was first scanned in three dimensions using magnetic resonance imaging while she produced four musical notes (A3, E4, D5, and A5) with /a/ and /i/. … These images were used to simulate voice production, including the vibratory motion of the vocal folds and the behavior of glottal airflow. …

    Acoustical Science and Technology 40(5), 313-324, 2019


  • What can voice and face convey?: Evolution of communication signals and emergence of human language  [in Japanese]

    Okanoya Kazuo

    <p>  人間と動物の認知的断絶を生物学的につなぐ仮説を紹介する。人間の言語と感情は, 他の動物には見られない詳細なコミュニケーション信号である。これらはどのように進化してきたのか。情動を表出する信号としての音声が複雑化し, 状況のカテゴリー化を可能にする言語に至る道筋を, 前適応という考えで説明する。さらに, 言語の表出と対になる顔表情との表出について, それが正 …

    Higher Brain Function Research 38(1), 1-7, 2018

    J-STAGE  Ichushi Web 

  • Sexual selection and the loss of laryngeal air sacs during the evolution of speech


    … <p>One noteworthy, but unexplained, aspect of the evolution of human speech is the loss of laryngeal air sacs during hominin evolution. … I explore the hypothesis that changes in social organization and mating system towards reduced male–male competition may have relaxed the selection pressure maintaining loud, low-frequency calls in hominins, making air sacs obsolete. …

    Anthropological Science 126(1), 29-34, 2018

    J-STAGE  Ichushi Web 

  • Progress in Regenerative Research of the Larynx and Trachea  [in Japanese]

    Omori Koichi

    … Based on the successful outcome in animal experiments as proof of concept, with approval from the IRB, we implanted the artificial trachea for repair of an airway defect in a human. …

    Practica Oto-Rhino-Laryngologica 111(1), 1-10, 2018

    J-STAGE  Ichushi Web 

  • A Talking Robot and Its Real-Time Interactive Modification for Speech Clarification

    NHU Thanh Vo , SAWADA Hideyuki

    … The authors are developing a talking robot based on the physical model of human vocal organs in order to reproduce human speech mechanically. … The talking robot has been trained using a self-organizing map (SOM) to reproduce human sounds; … however, due to the nonlinear characteristics of sound dynamics, automatic generation of human-like expressive speech is difficult. …

    SICE Journal of Control, Measurement, and System Integration 9(6), 251-256, 2016


  • A Talking Robot and the Expressive Speech Communication with Human

    SAWADA Hideyuki

    … Various vocal sounds are generated by the complex articulations of human vocal organs under the feedback control mechanisms using the auditory system. … By reconstructing a human vocal system mechanically, the authors have developed a talking robot based on the physical models of vocal organs. …

    International Journal of Affective Engineering 14(2), 95-102, 2015


  • Medical Simulations Empowered by Medical Information  [in Japanese]

    Nozaki Kazunori , Tamagawa Hiroo

    Human speech, respiration and swallowing are the original function performed in the oral and maxillofacial region based on fluid dynamics mainly. … These functions obey to the musculoskeletal controlled by the central nervous system. … According to speech, speech disorders occurs due to the problem in several central nervous system, M1, the brainstem and articulation organs. …

    Bulletin of the Japan Society for Industrial and Applied Mathematics 25(4), 159-165, 2015


  • 658 Study on the loudspeaker for robots : Discussion of the voice synthesis method  [in Japanese]

    TOBARI Etsuo , MASUMOTO Noriyasu , YAMAKAWA Hiroshi , YASUNO Masashi

    … A 3-dimensional sound field is made by interference with the sounds emitted from some sound sources in the normal loudspeaker system. … On the other hand, the voice made in vocal chords as a single sound source spreads radially when we speak. … In addition, the method to synthesize human voices with the loudspeaker for robots was discussed. …

    Dynamics and Design Conference : D & D 2014, "658-1"-"658-7", 2014-08-25

  • 657 Modeling of the sound generating mechanism  [in Japanese]

    ADACHI Masahiro , UTSUNO Hideo

    Vocal sounds and human vocalization mechanisms have interested many researchers for a long time, and computerized voice production and recognition have become essential technologies in recent developments of flexible human-machine interface studies. …

    Dynamics and Design Conference : D & D 2014, "657-1"-"657-10", 2014-08-25

  • Are Grammars Autopoiesis? : Digital Linguistic(No.5)Logics of Phonemes and Mora Generate Immune Networks of Consciousness  [in Japanese]

    Tokumaru Kimiaki

    論理とは「一定の要因にたいする生体の法則的な反応」を生みだす装置である.この定義は,遺伝子発現におけるDNAのRNAへの転写,mRNAのアミノ酸への翻訳の論理としても,コンピュータネットワークにおけるCPUのシフトレジスタの電圧ビットの斥力を利用した二進論理にも適用可能である.筆者がこの4年間行った検討結果にもとづけば,言語表現が意味を生みだす脳内の概念装置は,脳内の免疫ネットワークシステムであり …

    IEICE technical report. Internet Architecture 113(424), 25-30, 2014-01-30

  • The Molecular Structure of Intelligence  [in Japanese]

    Kimiaki Tokumaru

    ヒト音声言語はデジタル通信であり,具体的には音素性による符号語の恣意的で無限の創出能力と,音節のもつアクセントの微小エネルギーによって文法が使えるようになり,概念を文法的に紡いだ情報を交換できるという特徴をもつ.動物の脊髄記号反射は,記号のパターン認識 (A か非 A かの判断を行う二分法) とその運動ベクトル成分を二元論的に統合するが,言語は概念をパターン認識し,文法が論理ベクトルを指し示す二元 …

    IPSJ SIG Notes. ICS 2014-ICS-173(1), 1-8, 2014-01-16

  • Immune Cell Logics of "Dichotomy" and "Dualism" Operate Human Digital Vocal Sign Language and Thought in Human Brain : Immune Cells are Mobile Ad-hoc Networking (MANet) Neurons  [in Japanese]

    Tokumaru Kimiaki

    ヒトの言語は脊髄反射の発展したものであるようだ.それは単純な電気パルスがシナプス接続した神経細胞間を伝達することではなく,低雑音環境の脳室(VS)内脳脊髄液(CSF)中を浮遊するBリンパ球,脳幹網様体にあるCSF接触ニューロン,大脳新皮質のグリア細胞が繰り広げる複雑な免疫細胞ネットワークによって作用するとみられる.音節は,離散的な音素であり,無限の「単語」記号を生みだし,その音波の波形が独自で特異 …

    IEICE technical report. Natural language understanding and models of communication 113(338), 69-74, 2013-12-04

  • A Network Model for the Embodied Communication of Musical Emotions  [in Japanese]

    TERASAWA Hiroko , HOSHI SHIBA Reiko , SHIBAYAMA Takuro , OHMURA Hidefumi , FURUKAWA Kiyoshi , MAKINO Shoji , OKANOYA Kazuo

    … In this model, human with musical emotion is represented with<br> … (1) the interfaces of perception and expression (senses, movements, facial and vocal<br> … expressions), (2) an internal system of neural activities including the mirror system<br> … and the hormonal secretion system that handles responses to musical activities, and<br> …

    Cognitive Studies 20(1), 112-129, 2013-03-01

    J-STAGE  References (34) Cited by (1)

  • A singing voices synthesis system to characterize vocal registers using ARX-LF model

    Motoda Hiroki , Akagi Masato

    … This paper proposes a singing voices synthesis system to synthesize singing voices having characteristics of vocal registers, such as vocal fly, modal and falsetto. … Human can sing songs naturally in wide range of frequency by training how to use vocal fold vibrations to represent vocal registers. …

    2013 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'13), 93-96, 2013-03


  • Stress Relaxation Effects of Vocaloid Music Based on Physiological and Subjective Evaluations  [in Japanese]

    Higashide Hirotaka , Kamei Katsuari , Cooper Eric W.

    … 楽曲は、6曲(Vocaloid、人、Vocal lessの3パターンにより計18曲)を使用した。 …

    Proceedings of the Fuzzy System Symposium 29(0), 193-193, 2013


  • Estimating area function of the vocal tract from formants using a sensitivity function and least-squares

    Kaburagi Tokihiko , Takano Tetsuro , Sakamoto Yuki

    … We present methods for estimating the cross-sectional area function of the vocal tract from formant frequencies. …

    Acoustical Science and Technology 34(5), 301-310, 2013


  • J232022 Modeling and verification of a voice generation mechanism  [in Japanese]

    ADACHI Masahiro , UTSUNO Hideo

    Vocal sounds and human vocalization mechanisms have interested many researchers for a long time, and computerized voice production and recognition have become essential technologies in recent developments of flexible human-machine interface studies. …

    The Proceedings of Mechanical Engineering Congress, Japan 2013(0), _J232022-1-_J232022-5, 2013


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