Employing a Binaural Auditory Model to Classify Everyday Sound Events

Humans benefit considerably from exploiting two ears in everyday listening tasks. It therefore seems to be a promising concept for machine listening approaches to emulate the biological mechanisms of binaural signal processing before applying methods of artificial intelligence. In this work we employ a cross-correlation-based auditory model to automatically perform classification tasks on elementary everyday sound events. We present a heuristic scheme to extract the relevant features from the model’s output data. Given a set of training data, a classifier is then constructed using support vector machine (SVM) learning. The proposed method is validated in classification experiments performed on a database of natural sounds. We further discuss its robustness against variation of room acoustics.