BRTF (Body-Related Transfer Function) and Whole-Body Vibration Reproduction Systems

Interest in human responses to whole-body vibration has grown, particularly due to the increasing usage of vehicles, e.g. cars, trucks, and airplanes etc. Therefore both fundamental research studies and comfort studies have become a focus of attention in recent years. Many experimental studies in laboratory use reliable electrodynamic or hydraulic systems (simulators), which produce vibrations in one (vertical, z) or in three (x,y,z) directions. The requirements for such a system include a linear-frequency response, no cross-talk between different axes, no system harmonics and to be as silent as possible to avoid interaction between sound and vibration. The principal aspects of the authentic whole-body-vibration reproduction and the simulation systems show similarity with binaural technique and audio reproduction systems.