Title:
【発明の名称】反復的な音の圧縮システム
Document Type and Number:
Japanese Patent JPH11513813
Kind Code:
A
Abstract:
A sound compression system adaptively switches codebooks in and out based on a calculation carried out with the output of the codebook. The system uses three separate codebooks: adaptive vector quantization codebook, real pitch codebook, and noise codebook. The perceptually-weighted filter is generated adaptively using the predictive coefficients from the current sub-frame.
Inventors:
Yu, Alfred
Application Number:
JP51602297A
Publication Date:
November 24, 1999
Filing Date:
October 21, 1996
Export Citation:
Assignee:
America Online Inc.
International Classes:
G10L19/00; G10L19/04; (IPC1-7): G10L9/18
Attorney, Agent or Firm:
Shoichi Hase (2 outside)