Data from: Vocalisations of killer whales (Orcinus orca) in the Bremer Canyon, Western Australia

All acoustic sound files of killer whale vocalisations analyzed for this manuscriptAll vocalisations analysed for this manuscript are included in this zip folder as .wav files. There are a total of 142 whistles and burst-pulse vocalisations that were analysed and categorized accordingly. There are also 2 echolocation clicks that are discussed in this manuscript. Acoustic recordings were obtained with two devices. Primarily recordings were undertaken with a High Tech Inc. HTI-96-MIN hydrophone with built-in pre-amplifier (flat frequency response of 2 Hz to 30 kHz; sensitivity -164.1 dB re 1 V/µPa), fitted to a Sound Devices 722 digital recorder sampling at 96 kHz, 24-bit. Secondary to this, a SoundTrap (Ocean Instruments, New Zealand) —a self-contained underwater sound recorder—was rigged to a tow-line and deployed overside during an encounter when the vessel was travelling less than 5 knots. The SoundTrap sampled at 192 kHz, 16-bit.CMST_Wellard_Orca_bioacoustic_data.zip

本论文所分析的所有虎鲸发声声学音频文件，均以.wav格式存储于本压缩文件夹内。本次共分析并完成分类的虎鲸啸鸣与爆发脉冲发声（burst-pulse vocalisations）共计142个，本论文中还讨论了2个回声定位咔嗒声（echolocation clicks）。本次声学录音采用两套设备完成：主录音设备为High Tech Inc.公司生产的HTI-96-MIN水听器，内置前置放大器，其平坦频率响应范围为2 Hz至30 kHz，灵敏度为-164.1 dB（参考1 V/µPa）；该水听器连接至Sound Devices 722型数字录音机，采样率为96 kHz，采样位深为24位。辅助录音设备为新西兰Ocean Instruments公司出品的SoundTrap一体式水下声记录仪，在遭遇虎鲸群且航速低于5节的作业期间，将其安装于拖缆并布放至船体舷外。该SoundTrap的采样参数为192 kHz采样率、16位采样位深。本数据集压缩包名称为CMST_Wellard_Orca_bioacoustic_data.zip。