鼻音的由软腭下降发言以致气流在口道某处阻塞因而使鼻道张开的，如鼻辅音（m）（n）和（ng）或法语中的鼻元音bon的发音

• Articulated by lowering the soft palate so that air resonates in the nasal cavities and passes out the nose,as in the pronunciation of the nasal consonants(m),(n),and(ng) or the nasalized vowel of French bon.