Any prodigious 声波 or 噪 which is 免除 from 社会 禁止 Originally such 自然 现象 as 雷 火山 喷发 风暴 and so on were regarded as 宗教 噪 as they were believed to represent 神圣 战斗 or 神圣 displeasure with 人类

By 比喻 the 表达 may be extended to 社会 噪 which during certain 周期（时期） of 历史 have 逃离 the attention of 噪 减少 立法者 e g church bells 工业 噪 moozak 扩音（放大） pop 樂/乐 etc

源 Barry Truax - Handbook for Acoustic 生态学 CD-ROM Edition Cambridge Street 出版 1999 - CSR-CDR 9901