WEI Hong-bing1, YAN Bi-ge1, ZHANG Yong-yuan2
(1 Applied Acoustics Institute, Shaanxi Normal University, Xi′an 710062, Shaanxi, China;2 Department of Basic Courses, Xi′an University of Science and Technology, Xi′an 710054, Shaanxi, China)
Abstract:
Adopts step wave method to measure the time-average sound level (equivalent continuous sound level) of the sound level meter. Comparing the experimental measure with theoretical analysis, the results show that experimental standard error is not more than 0.053 dB, the difference between the value of experimental measure and theoretical analysis is not more than 0.10 dB. It is seen that this method have a certain consistency and a high precision and could be used to measure Leq function of the sound level meter.
KeyWords:
step wave method; sound level meter; time-average sound level; equivalent continuous sound level; frequency weighting
