Three-dimensional sound capture and reproduction system

点击翻译按钮获取中文摘要

Sound Field Reproduction (SFR) and Acoustic Imaging (AI) are analogous and important problems in acoustics, that use respectively loudspeaker antennas to synthesize sound fields in space and microphone antennas to identify sources of sound emission in space. The recent development of affordable, compact microphones and loudspeakers as well as the possibility to acquire and process audio data over hundreds of channels have triggered a lot of research in these areas recently. The goal of SFR – to re-create arbitrary sound fields in space – has long fascinated artists and musicians but this topic remains largely unexplored in engineering. Yet, virtual acoustics and virtual / augmented reality technology are bound to deeply modify engineering practice by placing humans and listening experience at the center of the acoustic design of products. In recent years, the two applicants have conducted research on the spatial reproduction, in laboratory, of sound fields in aircraft and train cabins, in industrial environments as well as on the use of these techniques for the precise characterization of acoustic and vibro-acoustic properties of materials.