For many years, active noise control (ANC) is a concept strongly discussed for the reduction of unwanted sounds. In addition to minimizing noise, this technique can be extended to achieve a target sound which is different from silence. This concept is called Active Sound Design (ASD). It does not only reproduce a target sound, but monitors the sound and uses a closed control loop . This results in a high quality reproduction and allows the target sound level to be lower or higher than the original sound level without system. One major application is the automotive engine noise. ASD allows to merely freely define the engine sound independent of the physical engine used in the car. The paper presents the concept of ASD and reports on applications of this technique for automotive interior and exterior sound.
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