Скачать или смотреть RB-SEM virtual acoustics (proof-of-concept)

We present a proof-of-concept of a virtual reality simulation tool based on the reduced basis method (RBM) for the low frequencies in combination with a geometrical acoustic method for the high frequencies. An actual meeting room located at Ramb.ll Denmark offices is modelled in 3D, to emulate an ongoing online meeting. Interactivity enables to change between different acoustic conditions and two receiver positions. Head orientation is enabled by means of real-time binaural rendering using second-order ambisonics. The reduced order model (ROM) is constructed by parameterizing the flow resistivity of the porous material at the surfaces, achieving speedups by a factor of 420 without introducing audible differences. This concept prototype proves the potential of RBM in building design and interactive virtual auditory displays.


Project funded by the Danish Sound Cluster.

Collaborators:
Technical University of Denmark
Treble Technologies
Virsabi
Rambøll Denmark
Ecophon

Contact: [email protected]
Copenhage, Denmark 2022