长沙话的声调在轻读音节中的弱化规则可分为广式和窄式两类。在广式规则中,六个单字调弱化为四个轻声。弱化后只剩下单字调的头或尾,轻声的调值只与本调有关,与前后字调值无关。在窄式规则中,六个单字调多弱化为轻阴平或轻阴去。 The tone of Changsha dialect weakening rules in light reading syllables can be divided into broad and narrow two categories. In the Cantonese-style rule, the six words are reduced to four soft tones. After weakened only the single-tone head or tail, softly tone only with the transfer related to tone value has nothing to do with before and after. In the narrow rules, six single tone more weaken to light Yin Ping or light shade go.