Patent ID: 8855325

Claim:
A method for synthesizing an engine noise, in particular of an internal combustion engine, comprising the steps of: retrievably storing in a data memory at least one signal sample having a predetermined length and being associated with an engine rotation angle, wherein the at least one signal sample is stored in form of function values, each function value representing a base level value, of a digital data series stored at signal sample support points which are sequentially arranged in step sizes, inputting into a computing unit an actual engine rotation speed as a reference value, multiplying in the computing unit the actual engine rotation speed with a clock cycle to compute a rotation-speed-adapted engine rotation angle step commensurate with a signal sample support point of the function value, recalling with the computing unit the function value of the at least one signal sample at the signal sample support point, producing from the recalled function value a rotation-speed-adapted level value which depends on measured or predefinable reference variables representing operating parameter of the engine or of a vehicle driven by the engine, computing a subsequent rotation-speed-adapted engine rotation angle step commensurate with a subsequent signal sample support point and recalling the function value at the subsequent signal sample support point to produce a subsequent rotation-speed-adapted level value, computing from the subsequent rotation-speed-adapted level value a signal value which is directly or indirectly transmitted to at least one electromechanical transducer as a transducer excitation signal, and generating the engine noise with the at least one electromechanical transducer using the transducer excitation signal.