Why is auditory frequency weighting so important in regulation of underwater noise?

被引：16
|
作者：
Tougaard, Jakob [1 ]
Daehne, Michael [2 ]
机构：
[1] Aarhus Univ, Dept Biosci, DK-4000 Roskilde, Denmark
[2] German Oceanog Museum, Katharinenberg 14-20, D-18439 Stralsund, Germany
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2017年 / 142卷 / 04期
关键词：
HARBOR PORPOISES; MARINE MAMMALS;
D O I：
10.1121/1.5008901
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A key question related to regulating noise from pile driving, air guns, and sonars is how to take into account the hearing abilities of different animals by means of auditory frequency weighting. Recordings of pile driving sounds, both in the presence and absence of a bubble curtain, were evaluated against recent thresholds for temporary threshold shift (TTS) for harbor porpoises by means of four different weighting functions. The assessed effectivity, expressed as time until TTS, depended strongly on choice of weighting function: 2 orders of magnitude larger for an audiogram-weighted TTS criterion relative to an unweighted criterion, highlighting the importance of selecting the right frequency weighting. (C) 2017 Acoustical Society of America
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页码：EL415 / EL420
页数：6
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