Department of Communication Sciences and Disorders and College of Medicine, University of Cincinnati, 3202 Eden Avenue, Cincinnati, Ohio 45267-0379, USA.
J Acoust Soc Am. 2012 Aug;132(2):EL88-94. doi: 10.1121/1.4734387.
Underwater and in-air noise evaluations were completed in performance pool systems at Georgia Aquarium under normal operating conditions and with performance sound tracks playing. Ambient sound pressure levels at in-pool locations, with corresponding vibration measures from life support system (LSS) pumps, were measured in operating configurations, from shut down to full operation. Results indicate noise levels in the low frequency ranges below 100 Hz were the highest produced by the LSS relative to species hearing thresholds. The LSS had an acoustic impact of about 10 dB at frequencies up to 700 Hz, with a 20 dB re 1 μPa impact above 1000 Hz.
在佐治亚水族馆的性能池系统中,在正常运行条件下并播放性能音轨的情况下,完成了水下和空中噪声评估。在运行配置中,从关闭到满负荷运行,测量了泳池内位置的环境声压级,并对应生命支持系统 (LSS) 泵的振动测量。结果表明,LSS 产生的相对物种听力阈值的最高噪声水平在 100 Hz 以下的低频范围内。LSS 在高达 700 Hz 的频率下具有约 10 dB 的声影响,在 1000 Hz 以上具有 20 dB 重 1 μPa 的影响。