HEAD acoustics Presents: Binaural Transfer Path Analysis and Vehicle Pass-by Simulation

Come and attend a free one-day presentation on two important technologies developed by HEAD acoustics.

Binaural Transfer Path Analysis (BTPA) and Binaural Transfer Path Simulation (BTPS)

The Binaural Transfer Path Analysis and Simulation (BTPA/BTPS) techniques have been developed for the prediction of sound quality in vehicles, not only in terms of numbers and graphs, but also for binaural auralization. The methodology, based on a combination of test rig measurements and acoustic simulation, began as a European research project. It has been used successfully by HEAD Consult NVH in the last several years within numerous consulting projects, and it has proven its suitability for efficient sound design engineering and troubleshooting of vehicle interior noise. BTPA and BTPS enable a prediction of vehicle interior noise and sound quality based on any number of modifications to the transfer paths of the baseline vehicle, e.g. test rig measurements of various components can be used to assess the sound quality impacts of component exchange.

Vehicle Pass-by Simulation

The procedures introduced by ISO 362 for measurement of vehicle pass-by noise are no longer sufficient for investigation of the sound quality aspects of traffic noise in urban streets. Consequently, new approaches are being investigated within the European research project called SVEN (Sound Quality of Vehicle Exterior Noise). One important element within this project is the synthesis of vehicle pass-by noise from individual component recordings. A unique hybrid model using recordings of the main excitation signals (exhaust system, intake, engine, tires) and binaural filters describing the transfer paths from the sources to an artificial head located at a distance of several meters outside the vehicle will be described.

Schedule

About the Instructors

Dr.-Ing. Klaus Genuit studied electronic engineering from 1971 to 1976 and economics until 1979 at the Technical University of Aachen. Concurrently, he attended the institute of "Elektrische Nachrichtentechnik" to investigate different psychoacoustic effects of human hearing. He received his PhD from the Technical University of Aachen in 1984 based on work with "A Model for Description of the External-Ear-Transfer-Function". For the next two years, he led the psychoacoustic working group dealing with binaural signal processing, speech intelligibility, hearing aids, and telephone systems at this institute. In cooperation with Daimler Benz (Stuttgart), he developed a new, improved artificial head measurement system with attributes comparable to the human ear.

In 1986, Dr. Genuit founded the company HEAD acoustics GmbH, a leading contributor in areas of binaural signal processing, telecommunication measurements, and virtual noise simulation. Dr. Genuit has applied for several patents and has authored or co-authored numerous papers. He is a member of multiple professional organizations, and he participates in various working groups dealing with the standardization of measurement regulations.

Dr.-Ing. Christian Nettelbeck studied mechanical engineering at the Technical University of Aachen, graduating in 1991. From 1991 until 1995, Dr. Nettelbeck worked for the institute of "Laboratorium für Werkzeug-maschinen und Betriebslehre," on the development of optical measurement systems, and from 1995 to 1997, he worked as the head of the testing department for a company that produced urban railway vehicle gear boxes. In 1997, he joined HEAD acoustics and soon focused on the application and further development of BTPA and BTPS. Within numerous successful projects for nearly every major car manufacturer worldwide, Dr. Nettelbeck has amassed substantial practical experience with respect to the measurement and simulation techniques required for BTPA and BTPS.

Times, Date and Location:

The Workshop will run from 9:00 AM to 4:00 PM on Wednesday, March 20, 2002.

The Workshop will be held in our Brighton, Michigan office. Lunch will be provided to attendees.

For more information, please call (248) 486-0099 ext.201

Register for Binaural Transfer Path Analysis and Vehicle Pass-by Simulation

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