The operating sounds radiated from internal combustion engine include tonal noise components caused by rotating mechanical parts such as the gears,fan and so on. The negative effects of tonal noise components need to be considered for the quantitative evaluation of users' subjective preference. However,it is found that the correlation between Aure's tonality and subjective preference is too low to fully reflect the influence of tonal characteristics on subjective feelings. In this paper,the calculation mode...