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Voice processing technologies are key elements in modern automotive communication systems. Cellular phones, voice links to car operating systems, and in-car computing networks will require advanced microphones to achieve the desired performance levels. These types of microphones allow the driver to communicate in a hands-free mode, adding safety and comfort to driving a car. Directivity, frequency response, vibration isolation and other parameters need to be optimized for the human voice within the noise and sound floor levels of today's driving environment. Both theoretical calculations and on-vehicle testing are necessary to position the microphone perfectly to deal with the complex acoustic patterns found inside a car.

„Modern motor vehicles do not work without electronics.” Although this simple statement has been valid for more than two decades, the demand for electronics and thus the position sensors involved have only just proliferated over the last several years. The well known throttle position and pedal position sensors enable the electronics to support engine operations in generating power while meeting environmental legislation. In addition, there is a steadily growing range of applications concerning passenger(s) safety and comfort (e.g. headlight control, variable suspension and various memory functions). On the one hand, there is increasing demand on the performance and durability for position sensors, on the other hand, there is a tremendous pricing pressure on the sensor supplier to reduce costs. This paper provides examples for applications involving rotary and linear resistor based sensors, wired as a voltage divider circuit.