Patent ID: 8705748
Filing Date: 2014-04-22
Classification: H04S

Abstract:
1. A processing module for a virtual-sound system configured to convert between virtual sound system operational modes, the processing module comprising: a spatial processor configured to receive a surround-left channel signal, a surround-right channel signal, a front-left channel signal, and a front-right channel signal from a decoder and to spatially process the received surround-left channel signal, surround-right channel signal, front-left channel signal, and front-right channel signal to generate spatially-processed signals, the generated spatially-processed signals comprising a virtualized front-left audio signal based on the received front-left channel signal and a virtualized front-right audio signal based on the received front-right channel signal, the spatial processor comprising a front-channel spatial-processing circuitry having at least one head-related transfer function filter to process the received front-left channel signal and the received front-right channel signal; a circuitry, coupled to the spatial processor, configured to receive the spatially-processed signals generated by the spatial processor, to generate separate signals for a first driver and a second driver of a center channel array in a single center speaker unit by removing crosstalk from the received spatially-processed signals and adding a center channel signal to the received spatially-processed signals after the removing of the crosstalk from the received spatially-processed signals, and to provide the generated separate signals to the first driver and the second driver of the center channel array in the single center speaker unit; and a front-virtualization control circuitry, coupled to the decoder and the spatial processor, configured to provide the front-left channel signal and the front-right channel signal from the decoder to the spatial processor and to cause: