Every voice is unique - just how we humans are. She represents ourselves in the ears of our counterpart just as our face is representing us visually. Inseparably connected with our nervous system we tell stories with our voice about how we are and what moves us - not just in terms of content, but with all the fine tones inbetween and nuances on the side.

Our vocal and communicative expression is shaped by the experiences we made. Was I allowed to finish, was my voice perceived as loud enough, was the only goal of singing the fun of it? Often enough the answer to these questions is No. That's how we build rhetorical defense mechanisms and vocal armories to be able to respond possible attacks or criticism.
Behind that the most important goes missing: authenticity, personality, the special thing, "it".

A healthy voice can be what she was made for:

transportation for personality   l    catalysator for relationships   l    enablement of communication