Patent ID: 8121312

Claim:
A method for equalizing an audio system using near- and far-field measurement data, the method comprising: capturing a set of room impulse responses (“RIRs”) at a plurality of listening locations of the audio system; determining low-frequency finite impulse response (“FIR”) coefficients for a low-frequency FIR filter; determining mid-frequency FIR coefficients for a mid-frequency FIR filter; determining high-frequency FIR coefficients for a high-frequency FIR filter; generating the low-frequency FIR filter utilizing the low-frequency FIR coefficients; generating the mid-frequency FIR filter utilizing the mid-frequency FIR coefficients; generating the high-frequency FIR filter utilizing the high-frequency FIR coefficients; generating an at least one low-frequency filter of the audio system utilizing a subwoofer equalizer (“EQ”) that includes the low-frequency FIR filter; generating an at least one mid-frequency filter of the audio system as a plurality of cascaded infinite impulse response (“IIR”) filters that are derived from the mid-frequency FIR filter; and generating an at least one high-frequency filter of the audio system as a plurality of cascaded IIR filters that are derived from the high-frequency FIR filter.