Patent ID: 7443987

Claim:
A sound processing system for receiving a plurality of input signals and for generating output signals for a plurality of output channels, the sound processing system comprising: a first matrix generates first output signals for the plurality of output channels in response to at least two first input signals, the first matrix having first dimensions for a number of inputs to a number of outputs, the number of inputs for the first matrix comprising at least two inputs; a second matrix generates at least one second output signal for at least one of the plurality of output channels in response to at least two second input signals, the second matrix having second dimensions for a number of inputs to a number of outputs, the number of inputs for the second matrix comprising at least two inputs, where the first matrix and the second matrix operate in parallel to one another; and at least one combiner in communication with the first matrix and the second matrix, the combiner generates signals for at least some of the plurality of the output channels for the sound processing system in response to the first output signals and the second output signals, where the first matrix generates a first signal for output on a particular output channel; where the second matrix generates a second signal for output on the same particular output channel; where none of the one or more input signals used to generate the first signal are used to generate the second signal; where the combiner combines the first signal for output on the particular output channel from the first matrix with the second signal for output on the particular output channel from the second matrix in order to generate a signal for the particular output channel; and where a sum of the number of outputs of the first matrix and the number of outputs of the second matrix is greater than a number of all of the plurality of the output channels of the sound processing system.