Each pair of fuzzy initials or finals has 3 codes in numeric keypad, in order to help these users who need the fuzzy code for partial Chinese characters.

That ensures that an experimenter eager for Alex to succeed won't mishear a slurred random utterance as a correct answer.

First, for phonetic fuzziness, the main cause is the tiny change of the cooperative move of the vocal organs and the influence of conjunctive sounds in different contexts.