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'Seismic Raves' raises a question

机译：“地震狂欢”提出了一个问题

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Hi Luciana, rnrnI read with interest the July–August 2008 article in SRL "Seismic Raves: Tremor observations from an electronic music festival," by David N. Green and David Bowers. The authors describe harmonic signals recorded coincident with the 2007 Glade Festival and make an excellent case that the festival generated the 2–3 Hz signals. rnrnHowever, I disagree with the conclusions in that I don't think the music itself caused the primary long-lived spectral lines. I think rather that steady machinery such as the power generators were responsible. In the article's Figure 5, for example, station BNST shows a line just above 2.4 Hz that is clear at 18:00 and persists until 04:00. It would be fairly monotonous musicians who would play a steady beat for 10 hours, and it would be quite a coincidence if 10 or 20 artists played nearly exactly the same frequency with hardly a break. Similarly, station WOL allows identification of roughly 2.3 Hz energy more than half the time across the same 10 hours.
机译：嗨，卢西亚娜，我很感兴趣地阅读了David N. Green和David Bowers在SRL SRL中的“地震狂想曲：电子音乐节的震颤观察”中的2008年7月至8月的文章。作者描述了与2007 Glade音乐节同时记录的谐波信号，并很好地说明了该音乐节产生了2–3 Hz信号。但是，我不同意这些结论，因为我认为音乐本身不会引起主要的长寿命谱线。我认为应该由稳定的机械（例如发电机）负责。例如，在文章的图5中，BNST站显示了一条刚好高于2.4 Hz的线，该线在18:00处清晰，一直持续到04:00。稳定的节拍持续10个小时是相当单调的音乐家，如果10或20位艺术家演奏几乎完全相同的频率而几乎没有休息，那将是一个巧合。同样，在相同的10小时内，工作站WOL可以识别大约2.3 Hz的能量超过一半的时间。

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