Audio signal processing apparatus and related computer program

Details Audio signal processing apparatus and related computer program Audio signal processing apparatus and related computer program

2003-11-10

2008-09-09

Ni, Suhan (Department: 2615)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C375S254000

Reexamination Certificate

active

07424332

ABSTRACT:
An audio signal processing apparatus includes first and second tables. The first table has coefficients. The second table has corrective values for correction of the coefficients in the first table. The corrective values are assigned to different sample numbers in at least two successive half-wave signal portions. Detection is made as to 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. The coefficients in the first table are corrected into correction-resultant coefficients in response to the detected sample numbers while the corrective values in the second table are used. Samples in the corrected-object half-wave portion of the digital audio signal are corrected in response to the correction-resultant coefficients.

REFERENCES:
patent: 7003469 (2006-02-01), Okayama et al.

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