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1 International Journal of Microelectronics and Computer Science

1 2010

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A mixed signal ASIC for detection of acoustic emergency signals in road traffic

Mielke M., Schäfer A., Brück R.

International Journal of Microelectronics and Computer Science

2010

Vol. 1, nr 2

105-111

In larger cities, emergency vehicles of fire services, emergency services, and police are often impeded by other road users. Although the emergency vehicles use visual and acoustic warning signals to become noticeable, they are not always perceived soon by other road users. This can lead to dangerous traffic situations, unacceptable delay for the emergency vehicle, and even accidents with other road users. To address this issue, and raise the awareness, and lower the reaction time of the driver, a driver assistance system was developed which monitors the ambient noise behind the car and informs the driver when an acoustic emergency signal is detected. Special attention was paid to simplicity of the algorithm for easy implementation in an integrated circuit. The circuit is not only applicable in road traffic. It can also form a basis for environmental sound interpretation for the use in assistive listening devices.