Active sound design

The vehicle-specific and engine-specific algorithms for generating sound patterns are stored in the Active Sound Design (ASD). The integrated digital signal processor generates an analogue signal. The generated signal is combined with the audio signal. The Active Sound Design (ASD) functions as a sound generator. The Active Sound Design (ASD) varies this additional signal according to the relevant driving condition and pedal sensor position. The modified and amplified audio signals are transmitted to the relevant speakers.

Courtesy of BMW OF NORTH AMERICA, INC.