Head diffraction compensated stereo system with loud speaker array

An audio processing method comprising the steps of:

• providing two input signals;
• introducing crosstalk cancellation in the two input signals including difference filtering a difference of the two input signals to obtain a first filtered signal and sum filtering of a sum of the two input signals to obtain a second filter signal;
• generating a sum output signal and a difference output signal respectively from the filtered signals and at least one additional output signal from the filtered signals.

An audio processing system comprising:

• means for providing two input signals;
• compensation means for introducing crosstalk cancellation in the two input signals for use with a dipole loudspeaker arrayed sym,etrically with a monopole loudspeaker including difference filter means for filtering a difference of the two input signals to obtain a first filtered signal and sum filter means for filtering a sum of the two input signals to obtain a second filtered signal;
• means for producing a dipole loudspeaker output signal from the first filtered signal and for producing a monopole loudspeaker output signal from the second filtered signal.

An audio processing system comprising;

• means for providing two input signals;
• compensation means for introducing crosstalk cancellation in the two input signals for use with a symmetric loudspeaker array having outer loudspeakers and an inner loudspeaker including difference filter means for filtering a difference of the two input signals to obtain a first filtered signal and sum filter means for filtering a sum of the two input signals to obtain a second filtered signal;
• summing and differencing means for generating a sum output signal and a difference output signal from said first and second filtered signals wherein the sum output signal is supplied to the inner loudspeakers of the array, and wherein the difference output signal is supplied to the outer loudspeaker of the array.

An audio processing method comprising the steps of:

• providing two input signals;
• introducing crosstalk cancellation in the two input signals for use with a dipole loudspeaker arrayed symmetrically with a monopole loudspeaker including filtering a difference of the two input signals to obtain a first filtered signal and filtering a sum of the two input signals to obtain a second filtered signal;
• producing a dipole loudspeaker output from the first filtered signal and producing a monopole loudspeaker output from the second filtered signal.

An audio processing system comprising:

• means for providing two input signals;
• compensation means for introducing crosstalk cancellation in the two input signals for use with a symmetric loudspeaker array having a first set of loudspeakers displaced from at least one additional loudspeaker including difference filter means for filtering a difference of the two input signals to obtain a first filtered signal and sum filter means for filtering a sum of the two input signals to obtain a second filtered signal;
• summing and differencing means for generating a sum output signal and a difference output signal from said first and second filtered signals wherein the sum output signal is supplied to the first set of loudspeakers of the array, and wherein the difference output signal is supplied to at least one additional loudspeaker of the array.