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      Tension
      發布時間:2019年04月09日     發布人:nanyuzi  
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      Tension

      緊音

       

      A term used in the phonetic classification of speech sounds referring to the overall muscular effort used in producing a sound. The contrasts are labelled variously, e.g. fortis v. lenis, tense v. lax. This contrast is viewed as particularly important in distinctive feature theories of phonology, where ‘tense’ is one of the main features set up to handle variations in manner of articulation. Tense sounds have been defined both articulatorily and acoustically: they are sounds produced with a relatively strong muscular effort, involving a greater movement of the (supraglottal) vocal tract away from the positon of rest, and a relatively strong spread of acoustic energy. The opposite term in Jakobson and Halle’s system is lax; in Chomsky and Halle’s later system, the term non-tense is also used: these are sounds produced with less muscular effort and movement, and which are relatively short and indistinct, involving a relatively weak spread of acoustic energy as in centralized vowels. Subglottal tension in Chomsky and Halle’s system is handled by the feature heightened subglottal pressure.

       

      語音學給語音分類的術語,指肌肉總體用力發出的音。與緊音的對立有多重名稱,例如張音~弛音,緊音~松音。這種對立在音系學的各種區別特征理論中被認為特別重要,緊是描寫發音方式變化而建立的主要特征之一。緊音從發音和聲學兩方面定義為:發音時肌肉較用力,(聲門上)聲道偏離靜止位置的程度較大,分布的聲學能量較強。對立的術語在雅可布遜和哈勒的系統中是松[音];在喬姆斯基和哈勒后期的系統中也用非緊[音]:它們發音時肌肉不太用力,動作不太大,較短較含混,跟央化元音一樣分布的聲學能量較弱。喬姆斯基和哈勒系統中聲門下緊音用聲門下增壓特征來描寫。

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      在线精品国产一区二区三区,欧美最猛性XXXXX大叫,亚欧美日韩香蕉在线播放视频