To produce words[phonetics] 2 3. Velum : Raising and falling down of velum that makes two types of sounds. - That sounds out of mouth and nose we call “Nasal’’ such a [m] and [n]. Nasal is made by we cannot raise velum. - That sounds out of only mouth we call ‘’Oral’’ , because we can raise velum to attach with pharyngeal wall. 4. Mouth : Working of these organs it is working of pair. We call ‘’Place of articulation’’ . They are two articulation . - Passive articulation : These organs area cannot move such a upper lip, upper teeth, etc. - Active articulation : These organs area can move such a lower lip, tongue etc. Please! Correct my English, Thank for.