The human voice is easy method in the information transmission. And it also includes variety of
information. This voice information includes the means and also includes other information. The voice
characteristics are individually depending on utterance speed, pitch tone, vocal organ features and gender.
And voice features also include further information such as emotions, health, and aging, etc. that are able
to get by analyzing the basic parameter of speech signal. .In modern society, it is important to focus on
the interpersonal relationships how does people speech to the voice characteristics. And, the voice is the
factors that determines the first impression between relationship people, that the ratio is around 47%.
Confidence in the voice is accompanied by a positive impact of such first impressions change. In this
paper, we collect and analyse the voice for confidence people by parameterizing. In addition, we test also
MOS in progress. And people are practicing with this parameter extraction and vocalization of the
behavioral changes was to get a sense of the confidence voice.