Acoustic vibration analyzing apparatus and acoustic vibration analyzing method, program for analyzing acoustic vibration, and recording medium, readable by computer, on which program for analyzing acoustic vibration is stored

A method of analyzing acoustic vibrations by picking up data of sounds or vibrations that are generated due to rotation of a plurality of rotating bodies and data of the number of revolutions of a rotating body selected from the plurality of rotating bodies when a power transmission mechanism of a vehicle having the plurality of rotating bodies operates, said method comprising:

• a frequency-analyzing step of calculating frequencies of the plurality of rotating bodies by analyzing frequencies of the data of the sounds or vibrations;
• an order converting step of calculating an order responsive to specifications of the plurality of rotating bodies based on data of frequencies of the plurality of rotating bodies;
• a speed-converting step of calculating speeds of the vehicle based on data of numbers of revolutions of the rotating bodies;
• a displaying step of displaying acoustic pressure levels acquired based on the data of the sounds or vibrations in a manner corresponding to the order and vehicle speeds;
• and
• a step of reproducing sounds when reproduction of sounds having a specified order are selected, based on a display made in the displaying step.

A recording medium readable by a computer, by which acoustic vibration analysis is carried out by causing data of sounds or vibrations generated due to rotation of a plurality of rotating bodies and data of a number of revolutions of a rotating body selected from the plurality of rotating bodies picked up by a computer when a power transmission mechanism of a vehicle having the plurality of rotating bodies operates, wherein said recording medium stores a program comprising:

• a frequency-analyzing step of calculating frequencies of the plurality of rotating bodies by analyzing frequencies of the data of the sounds or vibrations;
• an order converting step of calculating an order responsive to specifications of the plurality of rotating bodies based on data of the frequencies of the plurality of rotating bodies;
• a speed-converting step of calculating speeds of the vehicle based on data of the numbers of revolutions of the rotating bodies;
• a displaying step of displaying acoustic pressure levels acquired based on the data of the sounds or vibrations in a manner corresponding to the order and the vehicle speed;
• and
• a step of reproducing sounds when reproduction of sounds having a specified order are selected, based on a display made in the displaying step.