Patent ID: 7835535

Claim:
A multi-channel audio processor, comprising: (a) a plurality of multi-channel virtualizer filters for multi-channel audio inputs including rear virtual speaker inputs; (b) wherein a first filter of said plurality of virtualizer filters includes (i) an input for a rear channel, (ii) a first output to a first input of a cross-talk canceller, and (iii) a second output to a combiner coupled to an output of said cross-talk canceller, said first filter includes a notch filter for a frequency band in a signal path from said input for a rear channel to said first output and a bandpass for said frequency band in a signal path from said input for a rear channel to said second output; and (c) wherein a second filter of said plurality includes (i) an input for said rear channel and (ii) an output to a second input of said cross-talk canceller, said second filter includes a notch filter for said frequency band.