Evaluation of Auditory Signals in an Automobile for Safe Driving

Most of automobiles driven in the real road have various auditory signals, which induce drivers to perceive external factors that would yield accidents with sounds. Auditory signals of the systems are essential for the safety of driving, especially automatic driving vehicle. Although the car system can reduce accidents with sense of sight owing to development of AR, auditory signals also have potentials introducing informations related to accidents with focusing on the timbre of the sounds. Subjective evaluation is conducted by using 6 and 3 newly created sounds, which intuitively interact human auditory sense. Experimental results demonstrate that the prospects for the future with respect to communication between cars and drivers.