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首页> 外文会议>Scantek, Inc.;National conference on noise control engineering;Institute of Noise Control Engineering of the USA >Another 'New' Metric for Outdoor Amphitheater Criteria
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Another 'New' Metric for Outdoor Amphitheater Criteria

机译：户外露天剧场标准的另一项“新”标准

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Since the late 1960s, when amplified musical performances began being held there, Atlanta’sopen-air Chastain Park Amphitheater has been the source of enormous friction between the City,owner of the venue, and the wealthy and politically-connected residential community abuttingthe Park. To identify the characteristics of concert-event sound to which neighbors are particularlysensitive, sound levels were monitored during 17 concerts, ranging from quiet jazz andclassical performances to rock-and-roll and hip-hop; community sound levels were monitored at25 locations, including nine where measurements were made simultaneously inside and outsidehomes. The study team confirmed that low-frequency sound was the one feature of concert-relatedsound that community residents identified as most problematic, but that only a relativelysmall proportion of the Chastain concerts result in any significant community annoyance. Afterassessing the spectral characteristics of the most troublesome concerts, a new compliance metrichas been proposed to address low-frequency annoyance issues: a two-tiered exceedencethreshold, based on 1-minute LEQ levels in the 63 Hz octave band measured at the rear of theamphitheater, with a concert-event “exceedence” defined to be either a 1-minute LEQ(63 Hz)level greater than 95 dB or more than ten 1-minute LEQ(63 Hz) levels greater than 90 dB.
机译：自1960年代后期以来，当扩大的音乐表演开始在那举行时，亚特兰大的露天查斯顿公园露天剧场就一直是场地所有人城市和毗邻公园的富裕且具有政治联系的住宅社区之间巨大摩擦的根源。为了确定邻居对音乐会事件声音特别敏感的特征，在安静的爵士乐和古典音乐会到摇滚和嘻哈音乐等17场音乐会中对声音水平进行了监测。在25个地点（包括在室内和室外同时进行测量的9个地点）对社区的声音水平进行了监测。研究小组证实，低频声音是社区居民认为最有问题的与音乐会相关的声音的特征之一，但是只有较小比例的Chastain音乐会会引起任何明显的社区烦恼。在评估了最麻烦的音乐会的频谱特征之后，提出了一种新的顺应性度量标准来解决低频烦恼问题：基于在露天剧场后部测得的63 Hz八度音阶中的1分钟LEQ电平，一个两级超越阈值，音乐会事件“超出”定义为大于95 dB的1分钟LEQ（63 Hz）电平或大于90 dB的10个以上1分钟LEQ（63 Hz）电平。

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