How can humans, in air, hear sound generated underwater (and can goldfish hear their owners talking)?
How can humans, in air, hear sound generated underwater (and can goldfish hear their owners talking)?
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DOI：
10.1121/1.3681137
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发表时间：
2012-03-01
影响因子：
2.4
通讯作者：
Leighton, T. G.
中科院分区：
文献类型：
--
作者：
Leighton, T. G.
水体顶部的空气/水界面通常被从下面视为压力释放边界，它紧密匹配。然而，这种匹配中的微小差异足以使空气中的人类听到水下产生的声音，而这在压力释放边界上是不可能的。对这种现象的讨论是为了教学目的而设计的，并且使用的声学内容不超过一年级声学本科教学大纲中包含的声学内容，引发了关于金鱼是否能听到主人说话的讨论。然后，该分析用于说明在比较空气和水中的声级时需要注意的事项，这一过程继续导致媒体和一些学术文章中的错误陈述。 (C) 2012 年美国声学学会。 [DOI：10.1121/1.3681137]
The air/water interface at the top of a body of water is often treated from below as a pressure release boundary, which it closely matches. The small discrepancy in that match, however, is enough to enable humans in air to hear sounds generated underwater, which would not be possible across a pressure release boundary. A discussion of this phenomenon, designed for teaching purposes and using no more acoustics than would be contained in a first-year undergraduate syllabus in acoustics, leads to a discussion of whether goldfish can hear their owners speaking. The analysis is then used to illustrate the care needed when comparing sound levels in air and water, a process which continues to lead to erroneous statements in the media and some academic articles. (C) 2012 Acoustical Society of America. [DOI: 10.1121/1.3681137]