AudioMan: Design and Implementation of Electronic Travel Aid
AudioMan：电子行走辅助系统的设计与实现

Aiming at the popularization and the application flaw in the existing Electronic Travel Aid(ETA) system,a model of ETA system named AudioMan is designed,which is simple in structure,easy to carry and use and of low cost.AudioMan uses computer digital image processing technology to acquire the information of the road direction and barrier positions of user's environment.Also it uses auditory display technologies such as sonification,auditory icon to show blind people the environmental information.In this system,sonification technology is realized through the control of musical parameters;and the images information transmission can also be realized by sonification and auditory icon or earicon.The result of the usability test and appraisal indicates that the user sense of hearing model AudioMan establishes is more effective than the existing ETA system;at the same time it will help the blind understand the information of the sound more quickly and effectively.