Jensen’s session, “Modeling Strategies and Techniques in Car Cabin Acoustics” will cover the important role that simulation and virtual models play in the integration of sound systems into the car cabin environment as well as their calibration. Various modeling approaches and techniques used when assessing these systems will be discussed. Jensen will explain how the low to mid frequency behavior of car cabins is captured with a full wave models, while the high frequency behavior is typically captured with ray acoustics techniques, along with the emergence of new numerical methods and improved hardware shifts the frequency at which ray techniques are applied. The presentation also discusses boundary conditions as well as source characterization.
Faller’s presentation, “Visualizing, Tuning, and Auralizing Car Cabin Simulation Results,” will discuss a useful method for visualizing the results from an FEA or Ray Tracing models, where impulse response information is taken directly from a simulation model or generated from amplitude and phase measurement and imported into an Illusonic tool for reviewing time and frequency data for each point in the measurement data file. In automotive applications, the number of data points could correspond with microphones set in an array for each listening position. The resulting data can be grouped for review and comparison to measured data for the purpose of model updates. The data can also be grouped and averaged for a virtual equalization as well as auralization. This process will be reviewed and demonstrated.
Opening remarks and a question-and-answer period following the two sessions will be led by Shively, guided by the perspective of his 34 years of experience in engineering research and development, which includes significant experience in product realization and in launching new products at OEM manufacturers around the world.
This AES Audio Product Education Institute’s Automotive Audio webinar is part of an ongoing event series that underscores the AES’s commitment to providing its membership and the industry at large with practical knowledge in designing and implementing real-world applications and innovative sound systems.
Mads Herring Jensen
Mads Herring Jensen joined COMSOL in 2011 and is the technical product manager for the Acoustics Module. Before starting at COMSOL, he worked in the hearing aid industry for five years as an acoustic finite element expert. Mads has a PhD in computational fluid dynamics from the Technical University of Denmark.
Christof Faller
Christof Faller received an M.S. (Ing.) degree in electrical engineering from ETH Zurich, Switzerland, in 2000, and a Ph.D. degree for his work on parametric multichannel audio coding from EPFL Lausanne, Switzerland, in 2004. From 2000 to 2004 he worked in the Speech and Acoustics Research Department at Bell Labs Lucent and its spin-off Agere Systems, where he worked on audio coding for satellite radio, MP3 Surround, and the MPEG Surround international standard. He is currently managing director at Illusonic, a company he founded in 2006.
The Audio Product Education Institute (APEI) was launched in January 2020, as an initiative of the Audio Engineering Society (AES), to focus on promoting methodologies, practices and technologies involved in developing and bringing audio products to market. The Institute roadmap intends to focus on six educational pillars: Interactive Voice and DSP; Supply Chain and Sourcing; Modeling and Measurement; Product Management; Legal and Regulatory; and Artificial Intelligence and Machine Learning.
APEI Automotive Audio Webinar - Direct Validation of Computational Acoustic Results for Automotive Cabin Simulations, Tuesday, January 19, at 12:00pm EST
Webinar registration: https://us02web.zoom.us/webinar/register/WN_gAEHrM4rS8e6lCtx07qrmA
www.AES.org
www.audioproducteducationinstitute.org
