被动声学监测设备性能比较及对鸟声识别的影响
黄万涛, 郝泽周, 张梓欣, 肖治术, 张承云

A comparison of bird sound recognition performance among acoustic recorders
Wantao Huang, Zezhou Hao, Zixin Zhang, Zhishu Xiao, Chengyun Zhang
图3 4种不同鸣声频段鸟类声谱图
Fig. 3 Spectrograms of four bird species with different vocalization frequencies