《中原音韵》揭示的平分阴阳、浊上变去、全浊入声字归阳平、次浊入声字归去声的音变现象,得到了近代汉语官话语音文献和现代官话方言的证实,这说明《中原音韵》时代的共同语里平声已经分成阴、阳两调、全浊上声已变去声、全浊入声字已变阳平、次浊入声字已变去声。唯清入声字的归调不为多数官话方言证实,说明清入有其独特的性质,当是一个独立的声调。根据周德清及相关材料,《中原音韵》时代共同语的声调有五个调类,相应的调值是阴平33、阳平35、上声214、去声51、清入24。 The phonetic change phenomenon of bisecting yin and yang, turning up in turbidity and turning out all-voiced sound into yangping and sub-voiced sound entering words in “Zhongyuan rhyme” has been confirmed by the modern Chinese dialect and modern dialect Explanation of “Zhongyuan rhyme” era of common language flat sound has been divided into yin and yang two tone, all voiced on the sound has changed to sound, all voiced into the voice of the word has become flat, sub-turbid into voice has changed to sound. The return of the only clear voice is not confirmed by most dialects of Mandarin, indicating that it has its own unique character and is an independent tone. According to Zhou Deqing and related materials, the tone of the common language in the era of “Central Plains” is five tones. The corresponding tone values ​​are YINPING 33, YANGPING 35, SHENG 214, SHENG 51, and Qing 24.