Through the processes of devoicing and weakening, these initials evolve respectively in the places and the ways of pronunciation in terms of the tones, initials and finals.
益阳方言的古全浊声母根据声调、声母、韵母进行不同层级的演变，演变按照清化和弱化两种模式进行。
2
But voiced obstruent devoicing in Wuyu is not an individual phenomenon. In dialects of Jinhua and Quzhou, nominally voiced obstruents can not uncommonly be recorded as voiceless on sets.