External noises such as ambulance sirens, wet roads or a screw in a tire can provide key information to drivers. Conventional vehicle sensors reach their limits when it comes to detecting these noises. This is why intelligent acoustic sensor systems developed by Fraunhofer IDMT at the Oldenburg Branch for Hearing, Speech and Audio Technology HSA are going to equip cars with a sense of hearing. In conjunction with other driver assistance systems, the smart acoustic system provides relevant information for necessary driving maneuvers or (predictive) maintenance.
Nowadays, trucks and cars make use of cameras instead of mirrors to monitor traffic, including in the blind spot that occurs when turning. Complementing such camera systems, acoustic event analysis or detection of important ambient noises can crucially enhance the sensory functions in current as well as in autonomous vehicles. At Fraunhofer IDMT-HSA specific research is being conducted into algorithms for detecting and locating traffic-related noises to ensure that tomorrow’s vehicles are integrated even more safely into the traffic flow.
Whether drivers are reversing into parking spaces, hitching trailers or otherwise maneuvering their vehicles, acoustic signals can significantly help to increase the safety of both drivers and passersby. Microphones installed on vehicles and intelligent software enable drivers to interact with people outside the vehicle without having to open their windows.
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Fraunhofer Institute for Digital Media Technology IDMT
