What are the differences between traditional phonology and Chinese phonetic history?

This issue seems to have been discussed in Tang Zuofan's "Phonology Tutorial", so I will summarize it for you based on my memory.

Differences:

1. Phonetics is an objective description of speech, sometimes using various experimental methods to demonstrate the physiological and physical phenomena of speech; phonology principles It observes speech as a system and studies the interrelationships between various speech phenomena. Since phonetics studies speech as a physiological or physical phenomenon, there is so-called general phonetics, which describes the functions of vocal organs and the composition of various speech sounds. It is applicable to all human beings, but the specific language of each nation still has It just has some voice characteristics of its own. As for phonology, there is no "ordinary phonology" because phonology always belongs to a specific language and has significant national characteristics. The phonetic system of language A can never be the same as the phonetic system of language B.

2. Traditional phonology is a traditional discipline that uses Chinese characters as a notation tool. Chinese phonetics is an emerging discipline that introduces the Western International Phonetic Alphabet as a notation system.

3. The main research materials of traditional phonology are ancient phonetics of ancient sounds, genetics of the phonology of "Qie Yun" - "Guang Yun" and isophonology of systematic analysis of syllable structure. , there is research on "point" and "face" but not "history". The establishment of the discipline of Chinese phonetic history brings the phonetic systems and phonetic materials of all stages in history into the field of vision, and analyzes each ribbon according to the laws of evolution. The phonological systems are connected to form a coherent phonetic history.