Method and related apparatus for stereo vocal cancellation

Details Method and related apparatus for stereo vocal cancellation Method and related apparatus for stereo vocal cancellation

2005-06-21

2005-06-21

Grier, Laura A. (Department: 2644)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

C381S002000, C381S098000, C381S061000, C381S027000, C084S609000

Reexamination Certificate

active

06909787

ABSTRACT:
Method and related apparatus for canceling vocal portions containing in two signals of two stereo channels and providing two corresponding output signals. The method includes: generating a mono signal according to a sum of the signals of the stereo channels; respectively performing vocal cancellation to each signal of one stereo channel according to a difference between the signal of the stereo channel and the mono signal, and performing low-frequency band and high-frequency band compensation to results of vocal cancellation to generate the two output signals. Because vocal cancellation is performed for respective signal of one stereo channel, the two output signals will have substantial difference in frequency band other than the high-frequency band to increase effect of stereo.

REFERENCES:
patent: 6522751 (2003-02-01), Iwase et al.

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