Patent ID: 7492907
Filing Date: 2009-02-17
Classification: H04S

Abstract:
1. A method of processing a plurality of audio source signals to create a pair of audio output signals, the method comprising: receiving a plurality of n pairs of audio input signals, each pair of audio input signals comprising a left input signal and a right input signal; combining each pair of the n pairs of audio input signals to form n pairs of combined audio signals; processing each pair of the n pairs of combined audio signals to form n pairs of processed audio signals, wherein processing each pair of the n pairs of combined audio signals comprises applying a frequency response curve to at least one pair of the n pairs of combined audio signals, wherein a gain of the frequency response curve has a peak gain at approximately 125 Hz and the gain decreases above and below approximately 125 Hz at a rate of approximately 6dB per octave, and wherein the gain of the frequency response curve has a minimum gain at frequencies between approximately 1.5 kHz to approximately 2.5 kHz and the gain increases above frequencies between approximately 1.5kHz to approximately 2.5 kHz at a rate of approximately 6 dB per octave up to approximately 7 kHz and continues to increase up to approximately 20 kHz; combining at least one of the n left input signals with at least one of the n pairs of processed audio signals to generate a first audio output; and combining at least one of the n right input signals with at least one of the n pairs of processed audio signals to generate a second audio output signal.