taiś ca saṃyogavibhāgais tasya sthirasya vāyor apanayaḥ kriyate sa eva ca śabdasya saṃskāro nānyaḥ svalakṣaṇapuṣṭyādiḥ, tasya nityatvenaikarūpatvāt
And by those conjunctions and disjunctions, the removal of that stable air is accomplished, and that alone is the refinement of sound, not anything else like strengthening of its characteristics, because due to [sound's] eternality it has a single form.