The human sense of hearing is a highly-developed system: when we want to follow a conversation, we can block out disturbing background noise. At the same time, we perceive alarming noises immediately even under noisy conditions. We can predict with a good degree of accuracy the direction from which a noise is coming and how far away the source of the sound is. And all this with only two ears as sound receivers. In fact, most of the work actually takes place between the ears. In order to teach computers to hear, scientists from the Division for Hearing, Speech and Audio Technology at the Fraunhofer IDMT work together with scientists conducting fundamental research at the University of Oldenburg to develop computer models that simulate the human sense of hearing. The application fields for the technology extend from Smart Home and Smart City through to Industry 4.0. Interview with Dr.-Ing. Stefan Goetze
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