Author：Livestock Research Institute,COA

The voice collecting facility is a kind of omnidirectional voice collecting box installed in the cowshed for the cows ready to give birth. It could collect the special voiceprint of voice when the cows that suffer from dystocia situations. We collect these voiceprints for the purpose of developing an immediate warning mechanism and apply it to detect the dystocia situation of cows in the future. The voice collecting box could receive voice in 10 meters range in radius, and it was also made to contain waterproof and dustproof functions in IP54 level. We set the system to collect the voiceprints of cows from night to early morning every day. There is a special technique in the collecting box to filter the noise of vocals, exhaust fans, airplanes, neck clamps and large-scale equipment in the cowshed. Since the use of the voice collecting box in 2019, we have accumulated 50,771 voiceprint files from the demonstrating dairy farm.