| 摘要 |
PROBLEM TO BE SOLVED: To ensure a real and exciting effect by enable an output generating pass-by sound when objects pass by each other. SOLUTION: It is determined whether there is no generation of pass-by sound at present and a distance to a mating part is within a range of specified values or not at steps 10, 20. When it is within the range the relative speed with respect to the mating part is determined at a step 30. Then, when it is not within that waveform data, i.e., voice is selected corresponding to kinds of mating parts, and after an amplitude is controlled from elements such as the mutual speed and weather pass-by sound is generated at a step 40. In the case of generation of pass-by sound (Y of S10), volume of sound is controlled based on the present distance between both objects at a step 50, and right and left sound volumes are controlled according to the position of mating object at a step 60. Further, based on the mutual speed sound tone is controlled at a step 70. The purpose is attained in this way.
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