however, is further complicated by its variant realization as a velar nasal . standard japanese speakers can be categorized into 3 groups (a, b, c), which will be explained below. if a speaker pronounces a given word consistently with the allophone (i.e. a b-speaker), that speaker will never have as an allophone in that same word. if a speaker varies between and (i.e. an a-speaker) or is generally consistent in using (i.e. a c-speaker), then the velar fricative is always another possible allophone in fast speech.