Audio Moth
收藏资源简介:
Recordings made with AudioMoth at 384ksps 16bit, low gain. The microphone is protected by a 3micron aluminised Mylar film. Recorded at Colney Heath Conservation Area (51.78263, -0.271419) at 20:16 BST on April 4 2018. The 4 minute long recording includes Nyctalus Leisleri (>20kHz), Pipistrellus pipistrellus(fm down to 45kHz), Pipistrellus pygmaeus (fm down to 52kHz) and Myotis daubentonii (broad fm down to 30kHz). The second recording also includes a Noctule and a possible Serotine at the same location. The .png screen shot shows a comparison of the same pass recorded on the Audio Moth at ground level angled at 45 degrees, and a Petterson M500-384 handheld at chest height.CHC18-1p_20180406_203333.wav and CHC18-1am2_20180406_203154.wav are overlapping recordings made with the AudioMoth and Petterson for direct comparison.
本数据集的录音由声纳蛾(AudioMoth)录音设备采集,采样率为384千采样每秒(384ksps),采样精度为16位,增益设置为低增益。设备麦克风采用3微米镀铝迈拉(Mylar)薄膜进行防护。 本次录音的录制地点为科尼希思保护区(Colney Heath Conservation Area),坐标为51.78263, -0.271419,录制时间为2018年4月4日英国夏令时20:16。 该段时长4分钟的录音中包含以下蝙蝠的回声定位叫声:赖氏夜蝠(Nyctalus leisleri,叫声频率大于20kHz)、普通伏翼蝠(Pipistrellus pipistrellus,调频叫声低至45kHz)、侏伏翼蝠(Pipistrellus pygmaeus,调频叫声低至52kHz)以及道氏鼠耳蝠(Myotis daubentonii,宽频调频叫声低至30kHz)。 第二段同期录音同样位于该保护区内,其中包含一只夜蝠(Noctule)以及疑似棕山蝠(Serotine)的叫声。 本次提供的PNG格式截图展示了同一次蝙蝠过境录音的对比结果:分别由地面以45度角架设的AudioMoth录音设备,以及胸高位置手持的Petterson M500-384录音设备录制所得。 CHC18-1p_20180406_203333.wav与CHC18-1am2_20180406_203154.wav为AudioMoth与Petterson设备同步录制的重叠录音,用于直接对比测试。




