Noise prediction of cattle bells

摘要

The increasing urbanization approaches areas used for agricultural purposes. This tendency, leads to acoustic problems. These problems are due to animal activities and noise radiated by agricultural machines.From our experience, one of the most intruding sound is emitted from the bells hanging on cownecks. Bells' noise is characterised by impulsive signals which reverberate within the bell. Part of the reverberation can occur due to environmental reasons.Different bells emit different spectra of different levels. Our measurements lead to regression formulae.