《五音通韵》是一部反映清代初期实际语音的等韵文献,仅存抄本两部。《五音通韵》中,全浊声母全部清化,影喻合流、微母消失,零声母进一步扩大,知庄章合流,声母系统大大简化。它共有十九个声母,与《五方元音》等音系相同,反映了该时期汉语语音的历史变化,具有一定的语音史价值。 “Five-tone rhyme” is a rhyme document that reflects the actual voice of the early Qing Dynasty, with only two copies. In the “pentatonic rhyme”, the voiced consonants are all cleared, the metaphor is merged, the micro-mother disappears, the zero consonant is further enlarged, and the consonant system is greatly simplified. It has a total of 19 initials, which are the same as those of the “five-way vowel” and reflect the historical changes of the Chinese phonetics during this period, and have a certain phonological history value.