Acoustic data

Sound particle motion and pressure recordings for Ferrari et al 2018 School is out paper. Methods: Acoustic recordings: Sound pressure was recorded with an omnidirectional hydrophone (HiTech HTI-96-MIN with inbuilt preamplifier; sensitivity -165 dB re 1V/μPa; frequency range 2 Hz–30 kHz; High Tech Inc., Gulfport MS) and a solid-state recorder (Zoom H2 recorder; sampling rate 44.1 kHz; Zoom Corporation, Tokyo, Japan). The recorder was fully calibrated using pure sine wave signals generated in SAS Lab (Avisoft, Germany), played on an mp3 player, measured in line with an oscilloscope. Particle acceleration was recorded with an accelerometer (M30, sensitivity 0–3 kHz, manufactured and calibrated by GeoSpectrum Technologies, Dartmouth, Canada; recorded on a laptop via a USB soundcard, MAYA44, ESI Audiotechnik GmbH, Leonberg, Germany). Acoustic analysis: Acoustic recordings were analysed in MATLAB v2013a. Fast-Fourier Transforms were used to transform time domain recordings into the frequency domain before power spectral density was calculated with a window length of 1024 using a Hamming window on 1-min samples of ambient and boat sounds in the tank compared with original recordings made in the lagoon. This allowed comparison of sound levels across the frequency range 0-3 kHz. Sound levels are only considered up to 3 kHz due to the upper limit of the sensitivity of the accelerometer. This frequency range is likely to cover the hearing range of most fish. Figure Legend: Figure x. Sound pressure (left) and particle acceleration (right) power spectral densities of ambient and boat sounds in the tank compared with original recordings made in the lagoon. Sampling rate of recordings = 44.1 kHz, window length = 1024. Each line on the figure represents the mean level from 60 x 1-s Hamming filtered windows for the frequency range 0-3 kHz.

费拉里（Ferrari）等2018年发表于《School is Out》论文中的声粒子运动与压力记录数据集。
方法：
声学记录：声压采用全向水听器（omnidirectional hydrophone），型号HiTech HTI-96-MIN，内置前置放大器；灵敏度-165 dB re 1V/μPa；频率范围2 Hz~30 kHz；生产商为美国密西西比州格尔夫波特的High Tech Inc.，同时采用固态录音机（Zoom H2录音机；采样率44.1 kHz；日本东京Zoom Corporation制造）完成录制。该录音机通过德国Avisoft公司SAS Lab生成的纯正弦波信号完成全系统校准，校准信号由mp3播放器播放，并通过示波器进行比对测量。
粒子加速度采集：采用加速度计（accelerometer），型号M30，灵敏度覆盖0~3 kHz，由加拿大达特茅斯的GeoSpectrum Technologies公司制造并校准；采集信号通过USB声卡MAYA44（德国莱昂贝格的ESI Audiotechnik GmbH公司）传输至笔记本电脑完成记录。
声学分析：所有声学记录均在MATLAB v2013a中开展分析。首先通过快速傅里叶变换（Fast-Fourier Transforms）将时域录制信号转换至频域，随后针对水槽内环境声与船艇声的1分钟样本，采用窗长1024的汉明窗（Hamming window）计算功率谱密度（power spectral density），并与环礁湖内的原始录制音频进行对比，以此实现0~3 kHz频率范围内声级的量化对比。鉴于加速度计的灵敏度上限，本研究仅针对0~3 kHz频段开展声级分析，该频段基本覆盖多数鱼类的听觉感知范围。
图注：图x。水槽内环境声与船艇声的声压（左）及粒子加速度（右）功率谱密度，与环礁湖内的原始录制音频对比。录制采样率为44.1 kHz，窗长1024。图中每条曲线代表0~3 kHz频段内60个1秒汉明滤波窗口的平均声级。