Patent ID: 7092537

Claim:
A self-adaptive graphic equalizer operable to equalize the affects of an audio system on an audio signal, comprising: an adaptive graphic equalizer having a plurality of equalizing filters, the plurality of equalizing filters having different center frequencies and spanning a predetermined audio bandwidth, each equalizing filter being operable to filter an i th sub-band of the audio signal; a plurality of first filters coupled to the audio system, each first filter being operable to filter a programmed i th sub-band of an output signal of the audio system; a plurality of second filters receiving the audio signal, each second filter being operable to filter a programmed i th sub-band of the audio signal; and a gain adjuster operable to adjust the i th sub-band of the adaptive graphic equalizer in response to a difference in the i th sub-band of the filtered output signal from the plurality of first filters and the i th subband of the filtered audio signal from the plurality of second filters.