| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a noise measurement system, noise measurement program, and noise measurement method that clearly grasp occurrence of a noise more dominant than a background noise, and enable reduction in volume of noise data.SOLUTION: A noise measurement system has: sound collection means that acquires a noise; noise measurement means that performs a frequency analysis of the noise to acquire a noise spectrum; dominance determination means that determines whether an amount of dominance whose noise level in a specific determination frequency band in the noise spectrum is more dominant than that of a background noise is more than a prescribed threshold; trigger generation means that generates a trigger when the amount of dominance is more than the prescribed threshold; and recording control means that records noise data on the noise acquired by the sound collection means in recording means for a prescribed time when the trigger is generated.</p> |
