An interactive approach for design and development of electric vehicle sounds 2019-01-1568
Though the idea of masking the undesired tonal and intermittent noises arising from local ancillary elements of the powertrain of electric vehicles is clear for many automotive manufactures, the acoustic nature of such masking sound is still under development. Since this masking sound need also to represent their brand sound DNA, it needs to be creatively designed and clinically derived. As the task to bridge the design ideas into real vehicles involves usage of range of processes and extensive toolchains i.e. sound design creation, online parametrization via real tunings till the creation of production ready flash able datasets, this is the major ongoing challenge for automotive manufacturers. Considerably short development time and constraints in involved cost for such elaborative processes makes this task still tighter.
In order to overcome this hurdle of challenge involving the realization of multiple iterative processes in parallel to limited time and monetary constraints, the automotive manufacturers need to adopt a flexible and agile way of sound development approach using lean sound prototyping tools.
The ability to work from scratch till the end with a single tool will ensure the smooth transition of initial sound idea to its final development in vehicle without making any design compromises i.e. from the PC based bench simulations till the real time sound design refinement in accordance to target vehicle CAN data (or in simulator) must be done from a unified interactive tool such as m|klang® ScratchPad. Additionally, having the sound elements like synthesizers, filters, noise generators implemented close to standardized or equivalent to mass-production DSP coding format already in these prototyping tools will reduce the lead time for porting such developed design element into target application DSP in vehicles.
Katharina Schmidt, Somasundaram Alagappan, Roman Franke, Moritz Beyreuther, Rolf Schirmacher
Mueller-BBM Active Sound Technology GmbH
Noise and Vibration Conference & Exhibition