Spatially processing multichannel signals, processing module and virtual surround-sound system

摘要

Embodiments of a virtual surround-sound system and methods for simulating surround-sound are generally described herein. A processing module includes a spatial processor which spatially processes surround-left and surround-right channel signals and front-left and front-right channel signals and combines the spatially-processed signals for providing to drivers of centre speaker after crosstalk cancellation and combining with a centre-channel signal. In some embodiments, the processing module may include circuitry to cause the spatial processor to refrain from spatially processing either the front-left and front-right channel signals when front-left and/or front-right speakers are connected. The invention aims to reduce the set up complexity of prior art surround sound systems whilst making such systems less sensitive to the particular listening environment.