Vocal Tract

声道

A general term used in phonetics to refer to the whole of the air passage above the larynx, the shape of which is the main factor affecting the quality of speech sounds. It can be divided into the nasal tract ( the air passage above the soft palate, within the nose) and the oral tract (the mouth and pharyngeal areas, or cavities). In a more general application, the term is used in the sense of vocal organs, including all the features of the respiratory tract involved in the production of sounds, i.e. lungs, trachea and larynx as well.

语音学统指喉以上的整个气流通道，其形状是影响语音音质的主要因素。声道可分为鼻声道（软腭以上鼻腔内的气流通道）和口声道（口腔和咽腔区域）。这个术语有时还泛指全部发音器官，即还包括语音产生过程涉及的全部呼吸器官，即肺、气管以及喉。