J0910105 口腔内における冠状面の断面形状が歯茎摩擦音/s/の発生に及ぼす影響([J091-01]流体関連の騒音と振動(1))

DOI Web Site

書誌事項

タイトル別名
  • J0910105 Effects of cross-sectional shape in coronal plane on the sound generation of sibilant /s/

抄録

A new simplified vocal tract model of sibilant /s/ considering the airflow in the real vocal tract was constructed to investigate the relationship between the aeroacoustic sound and a turbulent flow generated in the vocal tract. The shape of the new model was designed based on the previous sibilant /s/ model and the cross-sectional shape at five positions in coronal plane was changed to reproduce the velocity distribution in the real vocal tract. The far field sound and the flow velocity at five positions were measured with a microphone and an anemometer respectively. The new model represented both fundamental characteristics of the sound in the frequency range 4 to 20 kHz and the velocity fluctuation at five positons. These results indicated that the velocity fluctuation in the vocal tract is essential to generate sibilant /s/ sound.

収録刊行物

  • 年次大会

    年次大会 2014 (0), _J0910105--_J0910105-, 2014

    一般社団法人 日本機械学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ