Contribution
Acoustic Driving Simulators in Virtual Vehicle Development: Sound and NVH Simulation Using Spatial Audio
* Presenting author
Abstract:
This study presents advancements in integrating driving simulators into the pre-development phase to enhance sound and NVH design in the automotive industry. Utilizing refined virtual vehicle models and digital twin technology, this approach enables comprehensive acoustic evaluation and optimization before physical prototypes are constructed. A primary focus is on creating a realistic driving experience, especially concerning the real-time simulation of sound characteristics, crucial for achieving an immersive effect.The development process involved multiple stages, including recording relevant noise sources, calculating binaural transfer functions, designing real-time operational software, and developing a precise audio playback system. To accurately replicate in-cabin noise, an 8.3 spatial audio system was implemented alongside a dynamic simulator platform with six degrees of freedom, allowing the spatial positioning of sound sources based on their real-world location.This research bridges the gap between studio-based sound design and real vehicle tets, providing a seamless connection between software and hardware-in-the-loop tests and driving simulations. The flexible architecture of the sound simulator allows for any driving situation to be digitally tested in advance, supporting an efficient, iterative approach to sound design. The methodology and key results demonstrate how immersive simulation tools contribute to the digitalization and early testing capabilities for sound design.