mellifluous

1. ADJ A mellifluous voice or piece of music is smooth and gentle and very pleasant to listen to. 悦耳的; 温柔的; 动听的[正式] [usu ADJ n]

I grew up around people who had wonderful, mellifluous voices. 我是在一群有着悦耳动听嗓音的人周围长大的。