Noise level prediction system for vehicle

A computer-readable storage medium storing a program that enables a computer to function as a noise level prediction system for a vehicle for predicting a noise to be perceived by an occupant of the vehicle,

• wherein the program enables the computer to function as:
• a parameter determiner configured to determine at least three parameters as parameters relating to a noise reduction effect when the noise is transmitted to the occupant, the parameter determiner being configured to determine, as the at least three parameters, a parameter relating to a sound insulation ability, a parameter relating to a sound absorption ability, and a parameter relating to a distance attenuation characteristic;
• and
• a calculator configured to calculate and predict a level of the noise to be perceived by the occupant by using the at least three parameter relating to the noise reduction effect determined by the parameter determiner.