The basic approach for comprehensive Active Sound Design has been introduced in (1). In addition to the sound generation for electric and combustion vehicles discussed there, hybrid vehicles require specific treatment: on the one hand the transition between electric and combustion drive modes has to be harmonized, on the other hand the characteristics of the different modes have to be maintained. This is achieved by a combination of the signature-based approach and the order-based approach. Besides engine sounds the global approach proposed here also generates and supports operational sounds: it synthesizes feedback sounds aligned to the actual vehicle parameters, thereby optimizing the Sound Quality process in terms of time and costs. The harmonization of all vehicle sounds in combination with the sound signature approach allows the realization of a Brand Sound. Starting from verbal brand descriptors this specific approach transports the Brand Identity into each vehicle. Since such a comprehensive approach has to be implemented into the vehicles specific attention has to be paid to the possibilities of the vehicle adaptations.
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