- 万国语音学字母 wànguóyǔyīnxuézìmǔ International Phonetic Alphabetsystem of phonetic notation based on the Latin alphabet to represent the sounds of spoken languages
- 国际语音学字母 guójìyǔyīnxuézìmǔ International Phonetic Alphabetsystem of phonetic notation based on the Latin alphabet to represent the sounds of spoken languages
- 实验语音学 shíyànyǔyīnxué experimental phoneticsScientific study of the physical and physiological properties of speech sounds using laboratory experiments and specialized instruments; specialized equipment; founded in the late 19th century, it is used to analyze phonetic details that cannot be distinguished by hearing alone, such as the difference between voiced and voiceless sounds.