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In Animals : an open access journal from MDPI

The priority placed on animal welfare in the meat industry is increasing the importance of understanding livestock behavior. In this study, we developed a web-based monitoring and recording system based on artificial intelligence analysis for the classification of cattle sounds. The deep learning classification model of the system is a convolutional neural network (CNN) model that takes voice information converted to Mel-frequency cepstral coefficients (MFCCs) as input. The CNN model first achieved an accuracy of 91.38% in recognizing cattle sounds. Further, short-time Fourier transform-based noise filtering was applied to remove background noise, improving the classification model accuracy to 94.18%. Categorized cattle voices were then classified into four classes, and a total of 897 classification records were acquired for the classification model development. A final accuracy of 81.96% was obtained for the model. Our proposed web-based platform that provides information obtained from a total of 12 sound sensors provides cattle vocalization monitoring in real time, enabling farm owners to determine the status of their cattle.

Jung Dae-Hyun, Kim Na Yeon, Moon Sang Ho, Jhin Changho, Kim Hak-Jin, Yang Jung-Seok, Kim Hyoung Seok, Lee Taek Sung, Lee Ju Young, Park Soo Hyun

2021-Feb-01

MFCC, cattle vocalization, convolutional neural network, sound classification