Design of vehicle horn sound as a communication tool for driversconsidering its environmental impact

为了研究汽车喇叭声的设计，考虑到作为一个警告信号的功能，不仅对驾驶员，而且对车外的人，心理声学实验和问卷调查有关的汽车喇叭的使用进行了研究。调查显示，除了避免危险情况外，汽车喇叭经常用于其他目的（例如，为了表达感激之情），以及许多经历过被汽车司机按喇叭的行人。此外，通过实验给出了喇叭声的声学特性与听觉印象之间的关系。考虑到目前汽车喇叭的使用情况，本研究建议喇叭声的主要成分在低频区。

To investigate the design of vehicle horn sound by taking into account the functionality as a warning signal and its effects on not only drivers but also people outside the vehicle, psychoacoustical experiments and questionnaire surveys concerning vehicle horn use were carried out. The survey revealed frequent vehicle horn uses for the purposes other than avoiding the dangerous situations (e.g., for expressing gratitude), and many pedestrians who had experienced being honked at by a car driver. Furthermore, the relationships between acoustical characteristics of horn sounds and auditory impressions were given by the experiments. Considering the current circumstances of vehicle horn use, the present study recommended that the horn sound with principle components in the low-frequency region was employed.