Patent ID: 7424332

Claim:
An audio signal processing apparatus comprising: a first table having coefficients; a second table having corrective values for correction of the coefficients in the first table, the corrective values being assigned to different sample numbers in at least two successive half-wave signal portions; first means for detecting a sample number in a corrected-object half-wave portion of a digital audio signal and a sample number in a half-wave portion of the digital audio signal which precedes the corrected-object half-wave portion; second means for selecting ones from the corrective values in the second table in accordance with the sample numbers detected by the first means; third means for correcting the coefficients in the first table into correction-resultant coefficients in response to the corrective values selected by the second means; and fourth means for correcting samples in the corrected-object half-wave portion of the digital audio signal in response to the correction-resultant coefficients generated by the third means.