Detailseite
Projekt
Signal Processing for Reproduction of Room Acoustics
Antragsteller
Professor Dr.-Ing. Sascha Spors
Fachliche Zuordnung
Akustik
Förderung
Förderung von 2011 bis 2018
Projektkennung
Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 174776315
The spatial reproduction of acoustic scenes captured by microphone arrays is an essential buildingblock for the auralization of room acoustics. Researchers have proposed a number of loudspeaker- and headphone-based reproduction techniques in the past decades. Although many of the proposed techniques aim at authentic reproduction this goal has not been achieved to date due to technical restrictions like the number of loudspeakers and microphones. This holds especially for three-dimensional reproduction considering elevated sources and room reflections. This project aims at the advancement of three-dimensional spatial sound reproduction methods in terms of accuracy and quality. Three main research directions are followed for this purpose: (i) user-tracked local synthesis of sound fields, (ii) explicit consideration of the spatio-temporal sparseness of sound fields and (iii) evaluation of the effect of the reproduction room on synthesized sound fields. Recently proposed techniques for the local synthesis of sound fields feature a higher accuracy within a restricted listening area in comparison to traditional sound field synthesis techniques. By combining these local techniques with user tracking a higher accuracy can be reached for moving listeners. The second research track exploits the spatio-temporal sparseness of sound fields in typical enclosures in order to improve the analysis and synthesis of sound fields. The acoustics of the room were the loudspeakers are located in, the reproduction room, has a considerable effect on the perceptual properties of the synthesized sound field. The project investigates the effects of reverberant environments on the synthesized sound field.
DFG-Verfahren
Forschungsgruppen
