Patent ID: 7522733

Claim:
A method of generating a monophonic output from a pair of input signals, the method comprising: receiving left and right stereo inputs to an audio enhancement system; phase adjusting the left input to produce left phase adjusted information; enhancing the left input with a first perspective filter to produce left enhanced information, the first perspective filter operative to enhance spatial characteristics of the left input; enhancing the right input with a second perspective filter to produce right enhanced information, the second perspective filter operative to enhance spatial characteristics of the right input; phase adjusting the right input to produce right phase adjusted information; inverting the right enhanced information to produce inverted right enhanced information; and combining at least a portion of the left phase adjusted information, at least a portion of the right phase adjusted information, at least a portion of the left enhanced information, and at least a portion of the inverted right enhanced information to generate an enhanced monophonic output, wherein phase adjusting the left and right inputs preserves audio information during said combining.