In the Journal of the Acoustical Society of America (JASA), a research paper by our former research assistant Christian Dreier and Prof. Michael Vorländer was recently published: Speed-dependent directivity patterns of road-traffic vehicles.
This paper explores the spatial and speed-dependent directivity patterns of various road-traffic vehicles, including electric, hybrid, and combustion-powered models. By employing time-variant wave backpropagation on microphone array signals, the research reveals significant insights into how driving conditions and engine characteristics influence vehicle noise emissions. The findings are compiled in an open-access database (http://doi.org/10.5281/zenodo.14142914), providing valuable data for noise mapping and auralization applications. The main parts of this research was supported by the HEAD-Genuit Foundation.
More details of Christian’s research will also be presented at his PhD defense, which will take place end of July 2025.
We’re happy that one of the paper’s figure was also chosen to be featured on the title page of the JASA’s current issue.
Title page of JASA, Volume 157, Issue 4
