The aim of this paper is to provide cues for prosodic characterization of attitudes in Japanese. This is comparable with similar researches made on others languages (e.g. American english, Brazilian portuguese, etc.). The presented work focuses on an objective analysis results of the Japanese based on the audio signal structure. In the proposed experiments, the speech signal of several Japanese native speakers is analyzed, The used signals were recorded in a particular context where the corresponding attitude is clearly identified and segmented. The presented results are based on a previous study where 16 attitudes were defined to describe the emotional content of human spoken language. Thus we compare the signal properties which can characterize each attitude.