Abstract
We conducted a queationnaire survey in order to clarify how the interface design of the automobile influences the user experiences at ear seats. Survey was conducted on different types of interface, and factor analysis was used in order to identify factors that explain the questionnaire results. Consequently two factors such as 'usability' and the 'pleasantness' are revealed. It is also observed that those factors tend to be incompatible. Further studies will be required to examine whether they can be compatible.
